Exclude non-reporting groups from EMWF
Add get_groups util to EMWF
Merge pull request #2861 from dimagi/get_groups

Add get_groups util to EMWF
Merge pull request #2860 from dimagi/filter_groups

Exclude non-reporting groups from EMWF
fix 500 for weird form ids

http://manage.dimagi.com/default.asp?102926
Merge pull request #2863 from dimagi/cz

fix 500 for weird form ids
Merge branch 'master' of github.com:dimagi/commcare-hq into emwf_query

Conflicts:
	corehq/apps/reports/filters/api.py