setting back to Android-18 API for now
setting back to Android-18 API for now

guardianproject/ChatSecureAndroid,31H0B1eV/ChatSecureAndroid,OnlyInAmerica/ChatSecureAndroid,prembasumatary/ChatSecureAndroid,n8fr8/AwesomeApp,ChatSecure/ChatSecureAndroid,n8fr8/ChatSecureAndroid,prembasumatary/ChatSecureAndroid,OnlyInAmerica/ChatSecureAndroid,joskarthic/chatsecure,n8fr8/ChatSecureAndroid,anvayarai/my-ChatSecure,eighthave/ChatSecureAndroid,h2ri/ChatSecureAndroid,guardianproject/ChatSecureAndroid,kden/ChatSecureAndroid,ChatSecure/ChatSecureAndroid,kden/ChatSecureAndroid,h2ri/ChatSecureAndroid,ChatSecure/ChatSecureAndroid,OnlyInAmerica/ChatSecureAndroid,joskarthic/chatsecure,31H0B1eV/ChatSecureAndroid,anvayarai/my-ChatSecure,h2ri/ChatSecureAndroid,n8fr8/ChatSecureAndroid,maheshwarishivam/ChatSecureAndroid,kden/ChatSecureAndroid,10045125/ChatSecureAndroid,bonashen/ChatSecureAndroid,joskarthic/chatsecure,n8fr8/AwesomeApp,prembasumatary/ChatSecureAndroid,OnlyInAmerica/ChatSecureAndroid,bonashen/ChatSecureAndroid,bonashen/ChatSecureAndroid,n8fr8/AwesomeApp,guardianproject/ChatSecureAndroid,maheshwarishivam/ChatSecureAndroid,31H0B1eV/ChatSecureAndroid,Heart2009/ChatSecureAndroid,eighthave/ChatSecureAndroid,anvayarai/my-ChatSecure,maheshwarishivam/ChatSecureAndroid,10045125/ChatSecureAndroid,Heart2009/ChatSecureAndroid,10045125/ChatSecureAndroid,eighthave/ChatSecureAndroid,ChatSecure/ChatSecureAndroid,Heart2009/ChatSecureAndroid