validate lat/long
indicate date on which sms users last reported on facility page
don't list reporting date for in-charges
improve user/incharge view on facilitiy page
update ref
accept lat/long of '0'
add support for periodic stock exports
change default location to garegion
temporarily disallow navigation to national level view, until we find a speed-up
Turns out this is unnecessary.

Revert "temporarily disallow navigation to national level view, until we find a speed-up"

This reverts commit 2cea74ab69f3eaec8296279a0f1ba382f301aa8c.
update refs
add a checkbox on registration to subscribe to email reports
add a migration to fix view_args in schedulable reports
update dependencies
add a report for stock availability just at the RMS and CMS
update submodule ref
small fix to url name
(cherry picked from commit 2f4cb9be80f1bae44cd410566d77d59252bbcdaa)
add quick fix for space in slugify
check for duplicate code in supply point
fix product availability graph to respect global stock policies.
also fix tests, update README for tests, and fix to facility form save.