[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/context.py

@@ -0,0 +1,5 @@
+from django.conf import settings
+from core.models import Expedition
+
+def troggle_context(request):
+    return { 'settings':settings, 'Expedition':Expedition }