fix revert_to_copy
Merge pull request #531 from dimagi/fix-revert

fix revert_to_copy
update submodules
hotfix bitly urls; broke in lazy attachment refactor
Merge pull request #534 from dimagi/bitly-url

hotfix bitly urls; broke in lazy attachment refactor
Switch PIL -> Pillow
Merge pull request #535 from kennknowles/switch-to-pillow

Switch PIL -> Pillow
Merge branch 'master' into tiered-sort
Force order for case detail elements in xml
Merge branch 'tiered-sort' into staging2