Implemented support for rooms

I implemented full api support for rooms. That means:
- Create/Modify/Delete rooms/lightgroups
- Get information about group list / individual group
- Group actions: Change lighting for the whole group (except setting scenes, because scenes are not implemented in ha-bridge right now)
For now the rooms/groups can only be configured through the api and apps, it's not visible/changeable through the web gui.

src/main/java/com/bwssystems/HABridge/BridgeSettings.java

@@ -90,6 +90,7 @@ public class BridgeSettings extends BackupHandler {
         	theBridgeSettings.setServerPort(System.getProperty("server.port", Configuration.DEFAULT_WEB_PORT));
         	theBridgeSettings.setUpnpConfigAddress(System.getProperty("upnp.config.address"));
         	theBridgeSettings.setUpnpDeviceDb(System.getProperty("upnp.device.db"));
+        	theBridgeSettings.setUpnpGroupDb(System.getProperty("upnp.group.db"));
         	theBridgeSettings.setUpnpResponsePort(System.getProperty("upnp.response.port", Configuration.UPNP_RESPONSE_PORT));
 	        
 	        theVeraAddress = System.getProperty("vera.address");