catch common errors in location bulk import
add receipts to sales/consumption report
psi report changes
clean imports
add const for static case types, update references, more import cleanup
delete generic tests.py
add const for the index reference between supply points and products
super simple tests for making supply points and products
Merge pull request #635 from dimagi/cz-commtrack

very minor code cleanup and basic tests for making objects
fix notify_exception arguments, remove imports
Merge pull request #636 from dimagi/cz

fix notify_exception arguments, remove imports
don't pass owner ids to elastic when no owner is set
use casexml submit workflow to create supply points (+ updated tests)
remove unused import
delete dead comment
update supply point products to use casexml submissions
remove other dead comment
hotfix for form forwarding; '{}'.format not allowed in 2.6
Merge pull request #638 from dimagi/py2.6-forwarding-fix

hotfix for form forwarding; '{}'.format not allowed in 2.6
delete unused function