Fix for #1622: Validate that facility name is unique on the sharing network (as best we can)
Allow syncing of facilities with the same name.
Fix for #1622: don't allow multiple groups with the same name.
General cleanup of code and comments to follow Django standards a bit more carefully.
Fix for #1839: Clean up facility_user views logic to avoid weird errors on failed POST.
Fix for #1838: only validate passwords when it's a new user (no password), or either of the password fields is non-empty.
Fix for #1885: warn if first/last name combo exists already; allow user to override.
Change for #1885: switch from facility-uniqueness check to zone
For security purposes, only show details on existing usernames to admins.
Validation where fields are inter-dependent are not guaranteed order, and should be done in clean.
Add tests
Get facility set from zone
Reconfiguring to allow field errors to be set directly, updating test accordingly.
Fixing bug (missing self), use more descriptive name
Rename update_po to test_wrappings, copy to update_pot witin centralserver.
Separate template deletions, paths for commands.
KA-LITE-MOD: tweak messages and search path to FIX DJANGO 1.4 BUGS
Fix up some small bugs (missing variables, functions)
Fix test_wrappings filters sent to makemessages, tunnel verbosity
Fix up strings that break string compiling.