initial restructuring of CMR and BPR
Finish BPR calcs, plus DRY organization
Merge remote-tracking branch 'origin/master' into opm

Conflicts:
	custom/opm/opm_reports/filters.py
	custom/opm/opm_reports/reports.py
Merge in ESQuery changes from emwf-refactor
Rewrite the get_rows method for CMR and BPR
fix typo
Make ESQuery.size(0) work properly
Merge branch 'opm' of github.com:dimagi/commcare-hq into opm
Merge remote-tracking branch 'origin/master' into opm
Add logic tests structure, remove old tests
pep-8, etc.
test for pregnancy status field
small cleanup
show only paying rows in BPR
refactoring vhnd_availability logic into ethans refactor
migrating twin child logic from old branch
adding vhnd_no image
removing kwargs
fix excl_breastfed condition

Conflicts:

	custom/opm/opm_reports/beneficiary.py
refactor form date range checks

Conflicts:

	custom/opm/opm_reports/beneficiary.py