Sort translation catalog
Move fun translations from locale/ to fun/locale/
Sort app-specific translation files

These files were generated by makemessages_fun
Get rid of obsolete v1/ translation folder
Remove useless django.mo_ file
Process one app at a time in makemessages_fun

Also, add a catchall 'all' app to process all FUN apps at a time.
Update all app translation files
Add "log out" translation
Move theme translations to the theme itself

It is possible to fetch the theme translations at runtime via the
fun-config common settings file.
Update makemessages_fun script to process theme

theme translations are no longer included in fun/locale.