fix initDB serverReference
fix initDB serverReference

happieio/cordova-plugin-couchbase-lite,happieio/cordova-plugin-couchbase-lite,happieio/Couchbase-Lite-Cordova-Plugin,happieio/Couchbase-Lite-Cordova-Plugin,happieio/Couchbase-Lite-Cordova-Plugin,happieio/cordova-plugin-couchbase-lite,happieio/Couchbase-Lite-Cordova-Plugin,happieio/cordova-plugin-couchbase-lite