update submodules
on deploy, first fetch all code, and then do a submodule update
Merge pull request #183 from dimagi/fetch-submodules

on deploy, first fetch all code, and then do a submodule update
update submodules
latest translations
Merge pull request #184 from dimagi/i18n

latest translations
Merge branch 'master' into staging2

Conflicts:
	submodules/core-hq-src
	submodules/couchforms-src