bottleservice: use get_build_var instead of manually BFSing boardconfigs

Change-Id: I18becc0c49b039212999fc83b97c2b17c5ad1d89
bottleservice: internally sourcing envsetup is no longer required

Change-Id: Ifcef077b197e0790a6ce6fcf0ec3332100fca15b
build: Re-enable Sinhala language

* Depends on http://review.cyanogenmod.org/62344

Change-Id: Ife98711dde84d2e620da8f3d381e111aa843975d
Prevent inter-bottle-service taint

Change-Id: I9e5593ca3f67e4cf9b8b31936b433ce9e1144445
Merge remote-tracking branch 'upstream/kk44' into kk44