selectively sync locations per user instead of syncing the whole fixture
selectively sync locations per user instead of syncing the whole fixture

http://manage.dimagi.com/default.asp?105091

basically, just use the user's linked locations to generate a base set
that includes all the parent chains, and use this set instead of the
database to generate the fixture.

qedsoftware/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq,qedsoftware/commcare-hq,qedsoftware/commcare-hq,dimagi/commcare-hq,puttarajubr/commcare-hq,SEL-Columbia/commcare-hq,puttarajubr/commcare-hq,qedsoftware/commcare-hq,puttarajubr/commcare-hq,qedsoftware/commcare-hq,SEL-Columbia/commcare-hq,puttarajubr/commcare-hq,SEL-Columbia/commcare-hq