diff --git a/.gitignore b/.gitignore
index 600a288..76c0d7c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,3 +29,4 @@ tunnel-import.log
 posnotfound
 troggle.sqlite-journal
 loadsurvexblks.log
+logbktrips.shelve
diff --git a/README.txt b/README.txt
index ca5646b..5528911 100644
--- a/README.txt
+++ b/README.txt
@@ -164,6 +164,13 @@ for when it is searching for packages (both django and troggle).
 Ensure that the path to the troggle/ directory is in the list.
 It should be at the top, which is where the current working directory is.
 
+Now:
+python  manage.py check -v 3 --deploy
+which will give security warnings for deployment.
+
+python  manage.py check -Wall
+Goives warnings of deprecated Django which should be fixed asap.
+
 Registering troggle as a django application
 -------------------------------------------
 In your troggle directory run
diff --git a/core/migrations/0002_auto_20200617_1631.py b/core/migrations/0002_auto_20200617_1631.py
deleted file mode 100644
index 6a6abe4..0000000
--- a/core/migrations/0002_auto_20200617_1631.py
+++ /dev/null
@@ -1,34 +0,0 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-from django.db import models, migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('core', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='survexblock',
-            name='legsall',
-            field=models.IntegerField(),
-        ),
-        migrations.AlterField(
-            model_name='survexblock',
-            name='legssplay',
-            field=models.IntegerField(),
-        ),
-        migrations.AlterField(
-            model_name='survexblock',
-            name='legssurfc',
-            field=models.IntegerField(),
-        ),
-        migrations.AlterField(
-            model_name='survexblock',
-            name='totalleglength',
-            field=models.FloatField(),
-        ),
-    ]
diff --git a/models.py b/models.py
deleted file mode 100644
index 68ffe7a..0000000
--- a/models.py
+++ /dev/null
@@ -1,226 +0,0 @@
-import string
-import os
-import datetime
-import logging
-import re
-from subprocess import call
-
-from urllib.parse import urljoin
-from decimal import Decimal, getcontext
-getcontext().prec=2 #use 2 significant figures for decimal calculations
-
-import settings
-
-from django.db import models
-from django.contrib import admin
-from django.contrib.auth.models import User
-from django.contrib.contenttypes.models import ContentType
-from django.conf import settings
-from django.core.urlresolvers import reverse
-from django.template import Context, loader
-
-import troggle.core.models_survex 
-
-def get_related_by_wikilinks(wiki_text):
-    found=re.findall(settings.QM_PATTERN,wiki_text)
-    res=[]
-    for wikilink in found:
-        qmdict={'urlroot':settings.URL_ROOT,'cave':wikilink[2],'year':wikilink[1],'number':wikilink[3]}
-        try:
-            cave_slugs = models_caves.CaveSlug.objects.filter(cave__kataster_number = qmdict['cave'])
-            qm=QM.objects.get(found_by__cave_slug__in = cave_slugs,
-                              found_by__date__year = qmdict['year'],
-                              number = qmdict['number'])
-            res.append(qm)         
-        except QM.DoesNotExist:
-            print(('fail on '+str(wikilink)))
-    
-    return res
-
-try:
-      logging.basicConfig(level=logging.DEBUG,
-                           filename=settings.LOGFILE,
-                           filemode='w')
-except:
-# Opening of file for writing is going to fail currently, so decide it doesn't matter for now    
-      pass
-
-#This class is for adding fields and methods which all of our models will have.
-class TroggleModel(models.Model):
-    new_since_parsing = models.BooleanField(default=False, editable=False)
-    non_public = models.BooleanField(default=False)
-    def object_name(self):
-        return self._meta.object_name
-
-    def get_admin_url(self):
-        return urljoin(settings.URL_ROOT, "/admin/core/" + self.object_name().lower() + "/" + str(self.pk))
-
-    class Meta:
-        abstract = True
-
-class DataIssue(TroggleModel):
-    date = models.DateTimeField(auto_now_add=True, blank=True)
-    parser = models.CharField(max_length=50, blank=True, null=True)
-    message = models.CharField(max_length=400, blank=True, null=True)
-
-    class Meta:
-        ordering = ['date']
-
-    def __str__(self):
-        return "%s - %s" % (self.parser, self.message)
-
-# 
-# single Expedition, usually seen by year
-#
-class Expedition(TroggleModel):
-    year        = models.CharField(max_length=20, unique=True)
-    name        = models.CharField(max_length=100)
-        
-    def __str__(self):
-        return self.year
-
-    class Meta:
-        ordering = ('-year',)
-        get_latest_by = 'year'
-    
-    def get_absolute_url(self):
-        return urljoin(settings.URL_ROOT, reverse('expedition', args=[self.year]))
-    
-    # construction function.  should be moved out
-    def get_expedition_day(self, date):
-        expeditiondays = self.expeditionday_set.filter(date=date)
-        if expeditiondays:
-            assert len(expeditiondays) == 1
-            return expeditiondays[0]
-        res = ExpeditionDay(expedition=self, date=date)
-        res.save()
-        return res
-        
-    def day_min(self):
-        res = self.expeditionday_set.all()
-        return res and res[0] or None
-    
-    def day_max(self):
-        res = self.expeditionday_set.all()
-        return res and res[len(res) - 1] or None
-
-class ExpeditionDay(TroggleModel):
-    expedition  = models.ForeignKey("Expedition")
-    date        = models.DateField()
-
-    class Meta:
-        ordering = ('date',)
-
-    def GetPersonTrip(self, personexpedition):
-        personexpeditions = self.persontrip_set.filter(expeditionday=self)
-        return personexpeditions and personexpeditions[0] or None
-
-class Person(TroggleModel):
-    """single Person, can go on many years
-    """
-    first_name  = models.CharField(max_length=100)
-    last_name   = models.CharField(max_length=100)
-    fullname    = models.CharField(max_length=200)
-    is_vfho     = models.BooleanField(help_text="VFHO is the Vereines für Höhlenkunde in Obersteier, a nearby Austrian caving club.", default=False)
-    mug_shot    = models.CharField(max_length=100, blank=True,null=True)
-    blurb = models.TextField(blank=True,null=True)
-    
-    #href        = models.CharField(max_length=200)
-    orderref    = models.CharField(max_length=200)  # for alphabetic 
-    user	= models.OneToOneField(User, null=True, blank=True)
-    def get_absolute_url(self):
-        return urljoin(settings.URL_ROOT,reverse('person',kwargs={'first_name':self.first_name,'last_name':self.last_name}))
-
-    class Meta:
-        verbose_name_plural = "People"
-        ordering = ('orderref',)  # "Wookey" makes too complex for: ('last_name', 'first_name') 
-    
-    def __str__(self):
-        if self.last_name:
-            return "%s %s" % (self.first_name, self.last_name)
-        return self.first_name
-
-
-    def notability(self):
-        notability = Decimal(0)
-        max_expo_val = 0
-
-        max_expo_year = Expedition.objects.all().aggregate(models.Max('year'))
-        max_expo_val = int(max_expo_year['year__max']) + 1
-
-        for personexpedition in self.personexpedition_set.all():
-             if not personexpedition.is_guest:
-                print((personexpedition.expedition.year))
-                notability += Decimal(1) / (max_expo_val - int(personexpedition.expedition.year))
-        return notability
-
-    def bisnotable(self):
-        return self.notability() > Decimal(1)/Decimal(3)
-    
-    def surveyedleglength(self):
-        return sum([personexpedition.surveyedleglength()  for personexpedition in self.personexpedition_set.all()])
-    
-    def first(self):
-        return self.personexpedition_set.order_by('-expedition')[0]
-    def last(self):
-        return self.personexpedition_set.order_by('expedition')[0]
-
-class PersonExpedition(TroggleModel):
-    """Person's attendance to one Expo
-    """
-    expedition  = models.ForeignKey(Expedition)
-    person      = models.ForeignKey(Person)
-    slugfield   = models.SlugField(max_length=50,blank=True,null=True)
-    
-    is_guest    = models.BooleanField(default=False)  
-    COMMITTEE_CHOICES = (
-        ('leader','Expo leader'),
-        ('medical','Expo medical officer'),
-        ('treasurer','Expo treasurer'),
-        ('sponsorship','Expo sponsorship coordinator'),
-        ('research','Expo research coordinator'),
-        )
-    expo_committee_position = models.CharField(blank=True,null=True,choices=COMMITTEE_CHOICES,max_length=200)
-    nickname    = models.CharField(max_length=100,blank=True,null=True)
-    
-    def GetPersonroles(self):
-        res = [ ]
-        for personrole in self.personrole_set.order_by('survexblock'):
-            if res and res[-1]['survexpath'] == personrole.survexblock.survexpath:
-                res[-1]['roles'] += ", " + str(personrole.role)
-            else:
-                res.append({'date':personrole.survexblock.date, 'survexpath':personrole.survexblock.survexpath, 'roles':str(personrole.role)})
-        return res
-
-    class Meta:
-        ordering = ('-expedition',)
-        #order_with_respect_to = 'expedition'
-
-    def __str__(self):
-        return "%s: (%s)" % (self.person, self.expedition)
-    
-    #why is the below a function in personexpedition, rather than in person? - AC 14 Feb 09
-    def name(self):
-        if self.nickname:
-            return "%s (%s) %s" % (self.person.first_name, self.nickname, self.person.last_name)
-        if self.person.last_name:
-            return "%s %s" % (self.person.first_name, self.person.last_name)
-        return self.person.first_name
-
-    def get_absolute_url(self):
-        return urljoin(settings.URL_ROOT, reverse('personexpedition',kwargs={'first_name':self.person.first_name,'last_name':self.person.last_name,'year':self.expedition.year}))
-	
-    def surveyedleglength(self):
-        survexblocks = [personrole.survexblock  for personrole in self.personrole_set.all() ]
-        return sum([survexblock.totalleglength  for survexblock in set(survexblocks)])
-    
-    # would prefer to return actual person trips so we could link to first and last ones
-    def day_min(self):
-        res = self.persontrip_set.aggregate(day_min=Min("expeditionday__date"))
-        return res["day_min"]
-
-    def day_max(self):
-        res = self.persontrip_set.all().aggregate(day_max=models.Max("expeditionday__date"))
-        return res["day_max"]
-
-
diff --git a/models_survex.py b/models_survex.py
deleted file mode 100644
index aed8003..0000000
--- a/models_survex.py
+++ /dev/null
@@ -1,239 +0,0 @@
-import os
-from urllib.parse import urljoin
-import re
-
-from django.db import models
-from django.conf import settings
-from django.core.urlresolvers import reverse
-
-
-###########################################################
-# These will allow browsing and editing of the survex data
-###########################################################
-# Needs to add: 
-#   Equates
-#   reloading
-
-class SurvexDirectory(models.Model):
-    path = models.CharField(max_length=200)
-    cave = models.ForeignKey('Cave', blank=True, null=True)
-    primarysurvexfile = models.ForeignKey('SurvexFile', related_name='primarysurvexfile', blank=True, null=True)
-    # could also include files in directory but not referenced
-    
-    class Meta:
-        ordering = ('id',)
-
-
-class SurvexFile(models.Model):
-    path = models.CharField(max_length=200)
-    survexdirectory = models.ForeignKey("SurvexDirectory", blank=True, null=True)
-    cave = models.ForeignKey('Cave', blank=True, null=True)
-    
-    class Meta:
-        ordering = ('id',)
-    
-    def exists(self):
-        fname = os.path.join(settings.SURVEX_DATA, self.path + ".svx")
-        return os.path.isfile(fname)
-    
-    def OpenFile(self):
-        fname = os.path.join(settings.SURVEX_DATA, self.path + ".svx")
-        return open(fname)
-    
-    def SetDirectory(self):
-        dirpath = os.path.split(self.path)[0]
-        survexdirectorylist = SurvexDirectory.objects.filter(cave=self.cave, path=dirpath)
-        if survexdirectorylist:
-            self.survexdirectory = survexdirectorylist[0]
-        else:
-            survexdirectory = SurvexDirectory(path=dirpath, cave=self.cave, primarysurvexfile=self)
-            survexdirectory.save()
-            self.survexdirectory = survexdirectory
-        self.save()
-
-
-class SurvexEquate(models.Model):
-    cave        = models.ForeignKey('Cave', blank=True, null=True)
-
-class SurvexStationLookUpManager(models.Manager):
-    def lookup(self, name):
-        blocknames, sep, stationname = name.rpartition(".")
-        return self.get(block = SurvexBlock.objects.lookup(blocknames),
-                        name__iexact = stationname)
-
-class SurvexStation(models.Model):
-    name        = models.CharField(max_length=100)   
-    block       = models.ForeignKey('SurvexBlock')
-    equate      = models.ForeignKey('SurvexEquate', blank=True, null=True)
-    objects = SurvexStationLookUpManager()
-    x = models.FloatField(blank=True, null=True)
-    y = models.FloatField(blank=True, null=True)
-    z = models.FloatField(blank=True, null=True)
-    
-    def path(self):
-        r = self.name
-        b = self.block
-        while True:
-            if b.name:
-                r = b.name + "." + r
-            if b.parent:
-                b = b.parent
-            else:
-                return r
-
-# class SurvexLeg(models.Model):
-    # block       = models.ForeignKey('SurvexBlock')
-    # #title = models.ForeignKey('SurvexTitle')
-    # stationfrom = models.ForeignKey('SurvexStation', related_name='stationfrom')
-    # stationto   = models.ForeignKey('SurvexStation', related_name='stationto')
-    # tape        = models.FloatField()
-    # compass     = models.FloatField()
-    # clino       = models.FloatField()
-class SurvexLeg():
-    tape        = 0.0
-    compass     = 0.0
-    clino       = 0.0
-
-#
-# Single SurvexBlock 
-# 
-class SurvexBlockLookUpManager(models.Manager):
-    def lookup(self, name):
-        if name == "":
-            blocknames = []
-        else:
-            blocknames = name.split(".")
-        block = SurvexBlock.objects.get(parent=None, survexfile__path=settings.SURVEX_TOPNAME)
-        for blockname in blocknames:
-            block = SurvexBlock.objects.get(parent=block, name__iexact=blockname)
-        return block
-
-class SurvexBlock(models.Model):
-    objects = SurvexBlockLookUpManager()
-    name       = models.CharField(max_length=100)
-    parent     = models.ForeignKey('SurvexBlock', blank=True, null=True)
-#    text       = models.TextField()
-    cave       = models.ForeignKey('Cave', blank=True, null=True)
-    
-    date       = models.DateField(blank=True, null=True)
-    expeditionday = models.ForeignKey("ExpeditionDay", null=True)
-    expedition = models.ForeignKey('Expedition', blank=True, null=True)
-        
-    survexfile = models.ForeignKey("SurvexFile", blank=True, null=True)
-#    begin_char = models.IntegerField()  # code for where in the survex data files this block sits
-    survexpath = models.CharField(max_length=200)   # the path for the survex stations
-    
-    survexscansfolder = models.ForeignKey("SurvexScansFolder", null=True)  
-    #refscandir = models.CharField(max_length=100)
-    
-    legsall   = models.IntegerField(null=True)  # summary data for this block
-    legssplay = models.IntegerField(null=True)  # summary data for this block
-    legssurfc = models.IntegerField(null=True)  # summary data for this block
-    totalleglength = models.FloatField(null=True)
-    
-    class Meta:
-        ordering = ('id',)
-
-    def isSurvexBlock(self): # Function used in templates
-        return True
-
-    def __str__(self):
-        return self.name and str(self.name) or 'no name'
-    
-    def GetPersonroles(self):
-        res = [ ]
-        for personrole in self.personrole_set.order_by('personexpedition'):
-            if res and res[-1]['person'] == personrole.personexpedition.person:
-                res[-1]['roles'] += ", " + str(personrole.role)
-            else:
-                res.append({'person':personrole.personexpedition.person, 'expeditionyear':personrole.personexpedition.expedition.year, 'roles':str(personrole.role)})
-        return res
-
-    def MakeSurvexStation(self, name):
-        ssl = self.survexstation_set.filter(name=name)
-        if ssl:
-            assert len(ssl) == 1
-            return ssl[0]
-        #print name
-        ss = SurvexStation(name=name, block=self)
-        #ss.save()
-        return ss
-    
-    def DayIndex(self):
-        return list(self.expeditionday.survexblock_set.all()).index(self)
-
-class SurvexTitle(models.Model):
-    survexblock = models.ForeignKey('SurvexBlock')
-    title       = models.CharField(max_length=200)
-    cave        = models.ForeignKey('Cave', blank=True, null=True)
-
-#
-# member of a SurvexBlock
-#
-ROLE_CHOICES = (
-        ('insts','Instruments'),
-        ('dog','Other'),
-        ('notes','Notes'),
-        ('pics','Pictures'),
-        ('tape','Tape measure'),
-        ('useless','Useless'),
-        ('helper','Helper'),
-        ('disto','Disto'),
-        ('consultant','Consultant'),
-        )
-
-class SurvexPersonRole(models.Model):
-    survexblock         = models.ForeignKey('SurvexBlock')
-    nrole               = models.CharField(choices=ROLE_CHOICES, max_length=200, blank=True, null=True)
-        # increasing levels of precision
-    personname          = models.CharField(max_length=100)
-    person              = models.ForeignKey('Person', blank=True, null=True)
-    personexpedition    = models.ForeignKey('PersonExpedition', blank=True, null=True)
-    persontrip          = models.ForeignKey('PersonTrip', blank=True, null=True)  
-    expeditionday       = models.ForeignKey("ExpeditionDay", null=True)
-    
-    def __str__(self):
-        return str(self.person) + " - " + str(self.survexblock) + " - " + str(self.nrole)
-
-class SurvexScansFolder(models.Model):
-    fpath               = models.CharField(max_length=200)
-    walletname          = models.CharField(max_length=200)
-    
-    class Meta:
-        ordering = ('walletname',)
-    
-    def get_absolute_url(self):
-        return urljoin(settings.URL_ROOT, reverse('surveyscansfolder', kwargs={"path":re.sub("#", "%23", self.walletname)}))
-
-    def __str__(self):
-        return str(self.walletname) + " (Survey Scans Folder)"
-
-class SurvexScanSingle(models.Model):
-    ffile               = models.CharField(max_length=200)
-    name                = models.CharField(max_length=200)
-    survexscansfolder   = models.ForeignKey("SurvexScansFolder", null=True)
-    
-    class Meta:
-        ordering = ('name',)
-    
-    def get_absolute_url(self):
-        return urljoin(settings.URL_ROOT, reverse('surveyscansingle', kwargs={"path":re.sub("#", "%23", self.survexscansfolder.walletname), "file":self.name}))
- 
-    def __str__(self):
-        return "Survey Scan Image: " + str(self.name) + " in " + str(self.survexscansfolder)
-
-class TunnelFile(models.Model):
-    tunnelpath          = models.CharField(max_length=200)
-    tunnelname          = models.CharField(max_length=200)
-    bfontcolours        = models.BooleanField(default=False)
-    survexscansfolders  = models.ManyToManyField("SurvexScansFolder")
-    survexscans         = models.ManyToManyField("SurvexScanSingle")
-    survexblocks        = models.ManyToManyField("SurvexBlock")
-    tunnelcontains      = models.ManyToManyField("TunnelFile")  # case when its a frame type
-    filesize            = models.IntegerField(default=0)
-    npaths              = models.IntegerField(default=0)
-    survextitles        = models.ManyToManyField("SurvexTitle")
-    
-    
-    class Meta:
-        ordering = ('tunnelpath',)
\ No newline at end of file
diff --git a/profiles/urls.py b/profiles/urls.py
index d10894d..da8a7d7 100644
--- a/profiles/urls.py
+++ b/profiles/urls.py
@@ -27,7 +27,7 @@ from django.conf.urls import *
 from profiles import views
 
 
-urlpatterns = patterns('',
+urlpatterns = [
                        url(r'^select/$',
                            views.select_profile,
                            name='profiles_select_profile'),
@@ -43,4 +43,4 @@ urlpatterns = patterns('',
                        url(r'^$',
                            views.profile_list,
                            name='profiles_profile_list'),
-                       )
+                       ]
diff --git a/requirements1.18.19.txt b/requirements1.18.19.txt
new file mode 100644
index 0000000..4f291e5
--- /dev/null
+++ b/requirements1.18.19.txt
@@ -0,0 +1,7 @@
+Django==1.8.19
+django-extensions==2.2.9
+django-registration==2.0
+Pillow==7.1.0
+six==1.15.0
+sqlparse==0.3.1
+Unidecode==1.1.0
diff --git a/urls.py b/urls.py
index c1de61c..3acb9d5 100644
--- a/urls.py
+++ b/urls.py
@@ -26,6 +26,7 @@ actualurlpatterns = [
     
     url(r'^troggle$',    views_other.frontpage,      name="frontpage"),
     url(r'^caves$',      views_caves.caveindex,      name="caveindex"),
+    url(r'^indxal.htm$',      views_caves.caveindex,      name="caveindex"),
     url(r'^people/?$',   views_logbooks.personindex, name="personindex"),
 
     url(r'^newqmnumber/?$',              views_other.ajax_QM_number, ),
@@ -83,10 +84,9 @@ actualurlpatterns = [
     url(r'^downloadqms$', views_other.downloadQMs),
 
     url(r'^admin/doc/?', include('django.contrib.admindocs.urls')), # needs docutils Python module (http://docutils.sf.net/).
-#    url(r'^admin/', include(admin.site.urls)),
     url(r'^admin/', admin.site.urls),
     url(r'^accounts/', include('registration.backends.default.urls')),
-    url(r'^profiles/', include('profiles.urls')),
+    url(r'^profiles/', include('profiles.urls')), # not used ? Delete this entire app then.
 
 #   (r'^personform/(.*)$', personForm),
 
diff --git a/wookey-exposerver-recipe.txt b/wookey-exposerver-recipe.txt
index b3edf7b..f548060 100644
--- a/wookey-exposerver-recipe.txt
+++ b/wookey-exposerver-recipe.txt
@@ -75,4 +75,10 @@ apt install python-django-registration python-django-imagekit python-django-tiny
 then hold them to stop them being upgraded by unattended upgrades:
 echo "python-django hold" | sudo dpkg --set-selections
 echo "python-django-common hold" | sudo dpkg --set-selections
-echo "python-django-doc hold" | sudo dpkg --set-selections
\ No newline at end of file
+echo "python-django-doc hold" | sudo dpkg --set-selections
+
+Optimizing server
+I've tweaked the apache and mysql settings to make them a bit more suitable for a small machine. Seems to have shaved 200MB or so off the idling footprint.
+https://www.narga.net/optimizing-apachephpmysql-low-memory-server/
+
+(just discovered 'ab' for running apache performance tests - handy).