UK: update password reset docs
UK: add id to user endpoint data
UK: lookup user by pk or username
UK: lookup profile by user pk or username
UK: add id to profiles endpoint
UK: add username to reset email link, closes #680
DW: Added version to xform and instance. Overide the default partial update to replace a form
DW: Corrected failing tests
DW: Added test for a bad xls file update. added version param in data export and code refactor