bulk download for system text translations
bulk upload for translations
add default column; sort properties in download
fix bugs with uploading translations
prepping for the multimedia support
Merge branch 'master' of github.com:/dimagi/commcare-hq into vellum-multimedia-support
add more default translations
remove print statement
Add ability to sync user with a case

This is the first part of the features needed for call center
functionality.
Close case on user archive/delete
adding in the appropriate refs on hq's end for multimedia in vellum
Merge branch 'master' of github.com:/dimagi/commcare-hq into vellum-multimedia-support
Merge branch 'master' into sync-users-to-cases
Final touches to user/case syncing

- Restrict project config fields to previewer
- Sync custom user data
- Add groups to case owner select
multimedia map should not show duplicate references (language) in form
make upload controller not dependent on knockout
something more namespaced than path
unused import
Merge branch 'master' of github.com:/dimagi/commcare-hq into vellum-multimedia-support
fix weird django_digest test import dependency issue