Selective sync for products
Selective sync programs
Fix whitespace
Add management command to populate last_modified fields
update staging.yaml

[ci skip]
update staging.yaml

[ci skip]
Prevent hard crash on bad consumption columns
update staging.yaml

[ci skip]
Add droberts' comment to staging.yaml

https://github.com/dimagi/commcare-hq/commit/138fb08b0da7a98c49e5f3b42b80ac7ebc58d387#commitcomment-7004650
Merge pull request #4115 from dimagi/location-import-error

Prevent hard crash on bad consumption columns
Remove print statements from management command
Merge pull request #4109 from dimagi/selective-sync-products-programs

Selective sync products programs
Update submodules
update staging.yaml

[ci skip]
Merge branch 'master' into vellum-requirejs+bootstrap3-stylin

Conflicts:
	submodules/formdesigner