added counter demo app, and router now calls app.start() on startup
added counter demo app, and router now calls app.start() on startup

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