Add location mappings to users bulk export
Enable uploading of single user location mapping
Add supply point case access via delegates

First commit so just basic features and not cleaned up
Add new location methods and fix tests
add support for resource descriptors; give translations and forms descriptors
Refactor use of .commtrack_location to new method
Lazy migrate CommTrackUser
Merge branch 'master' into multiple-locations

Conflicts:
	corehq/apps/users/views/mobile/users.py
use with open
fix tests
Clean up tests/code

Lots of misc fixes. Had a bad test, refactored some stuff, handled
missing supply point issues better.
use unicode; use trans(); better unknown language txt
add xml2json submodule
First draft of location import changes
Cleaned up and refactored location submission
Cache the location to supply point lookup
Fix front end for location imports
Actually add test file
tollerate missing langs in form and module names
Fix failing tests