added app["active"] to global context, to make tab.active (css) work.
added app["active"] to global context, to make tab.active (css) work.

ehealthafrica-ci/rapidsms,peterayeni/rapidsms,dimagi/rapidsms-core-dev,catalpainternational/rapidsms,eHealthAfrica/rapidsms,ken-muturi/rapidsms,lsgunth/rapidsms,eHealthAfrica/rapidsms,ehealthafrica-ci/rapidsms,caktus/rapidsms,peterayeni/rapidsms,lsgunth/rapidsms,rapidsms/rapidsms-core-dev,unicefuganda/edtrac,unicefuganda/edtrac,ken-muturi/rapidsms,eHealthAfrica/rapidsms,caktus/rapidsms,catalpainternational/rapidsms,catalpainternational/rapidsms,dimagi/rapidsms,catalpainternational/rapidsms,lsgunth/rapidsms,unicefuganda/edtrac,caktus/rapidsms,peterayeni/rapidsms,dimagi/rapidsms-core-dev,dimagi/rapidsms,ken-muturi/rapidsms,lsgunth/rapidsms,rapidsms/rapidsms-core-dev,ehealthafrica-ci/rapidsms,peterayeni/rapidsms