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 namespace to xml dateTime
Add UserES view
Add new location methods and fix tests
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
Clean up tests/code

Lots of misc fixes. Had a bad test, refactored some stuff, handled
missing supply point issues better.
fix obscure bug with trying to download an export when you have on forms submitted to the domain
remove verified number if attempting to change it to an invalid value
use default datetime.utcnow() as message timestamp
Revert "update vellum"

This reverts commit e0229e8edb6b2975be5a32aee8ff82e648f12792.
Merge pull request #1976 from dimagi/vellum-revert

Revert "update vellum"
don't show parent case properties in custom case export
Merge pull request #1977 from dimagi/no-parents

don't show parent case properties in custom case export
fix incorrect classes
Added create and edit APIs for CommCareUser(mobile-worker)
Merge pull request #1974 from dimagi/delete-number

remove verified number if attempting to change it to an invalid value