added state command, nicer help

src/ebusd/mainloop.h

@@ -126,6 +126,13 @@ private:
 	 */
 	string executeListen(vector<string> &args, bool& listening);
 
+	/**
+	 * Execute the state command.
+	 * @param args the arguments passed to the command (starting with the command itself).
+	 * @return the result string.
+	 */
+	string executeState();
+
 	/**
 	 * Execute the scan command.
 	 * @param args the arguments passed to the command (starting with the command itself).