bumped version to 0.9.4a for pypi.
bumped version to 0.9.4a for pypi.

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