removing new_since_parsing and fixing tests

core/fixtures/expo_caves.json

@@ -1,5 +1,5 @@
 [{"model": "core.cave", "pk": 43, "fields": 
-    {"new_since_parsing": false, "non_public": false, 
+    {"non_public": false, 
     "official_name": "Schnellzughöhle", 
     "kataster_code": "6/t/S/W x", 
     "kataster_number": "115", 
@@ -17,8 +17,8 @@
     "areacode": "1623"}},
     
 {"model": "core.cave", "pk": 350, "fields": 
-    {"new_since_parsing": false, "non_public": false, 
-    "official_name": "Seetrichter", 
+    {"non_public": false, 
+    "official_name": "Seetrichter (Lake bottom)", 
     "kataster_code": "", 
     "kataster_number": "284", 
     "unofficial_number": "", 

core/fixtures/expo_exped.json

@@ -1,15 +1,15 @@
 [{"model": "core.expedition", "pk": 44, "fields": 
-    {"new_since_parsing": false, "non_public": false, 
+    {"non_public": false, 
     "year": "2019", "name": "CUCC expo 2019"}},
     
 {"model": "core.personexpedition", "pk": 681, "fields": 
-    {"new_since_parsing": false, "non_public": false, 
+    {"non_public": false, 
     "expedition": 44, 
     "person": 250, "slugfield": null 
     }}, 
     
 {"model": "core.person", "pk": 250, "fields": 
-    {"new_since_parsing": false, "non_public": false, 
+    {"non_public": false, 
     "first_name": "Michael", 
     "last_name": "Sargent",
     "slug": "michael-sargent",