remove comment referencing XFORMS_POST_URL
Merge pull request #2374 from dimagi/rm-XFORMS_POST_URL

remove comment referencing XFORMS_POST_URL
work on Roles so far
Merge pull request #2376 from dimagi/add_roles

work on Roles so far
removing AlreadyExistsError from billing
Merge pull request #2378 from dimagi/fix_billing

removing AlreadyExistsError from billing, self merge #yolo
Merge branch 'master' of github.com:dimagi/commcare-hq into commtrack-makethehurtingstop