Starting API v6
Add UserESMixin
Add tests for UserES
Add tests for ES User API
Add working API, still needs to filter fields
Add tests for User API
Restrict results to domain
Print response on error to see what broke
Remove actual ES query from tests

it breaks travis :(
support calculate expressions for xpaths in case details
Move bulk-user api to v5 as a separate resource
Separate user and bulk-user resources

and move to v5
remove extra import
Reduce the size of OPM tests
Support optional field restriction
Add docs for Bulk User Resource
use fontawesome stars
Add a light wrapper for elasticsearch calls
add copy_case mgmt command
allow specifying a new domain for forms and cases