[svn] Renaming troggle.expo to troggle.core. To do this, used:

perl -p -i -e "s/expo(?=[\s\.']+)/core/g" `find -name \*.py`

and then manually checked each change (had to remove a couple)

core/views.py

@@ -0,0 +1,8 @@
+# primary namespace
+
+import view_surveys
+import views_caves
+import views_survex
+import views_logbooks
+import views_other
+