add support for armv6l using serveronlymode, make serveronly config option, electron install optional

config/config.js.sample

@@ -24,7 +24,12 @@ var config = {
 	language: "en",
 	timeFormat: 24,
 	units: "metric",
-
+	// serverOnly:  true/false/"local" ,
+												// local for armv6l processors, default 
+												//   starts serveronly and then starts chrome browser
+												// false, default for all  NON-armv6l devices
+												// true, force serveronly mode, because you want to.. no UI on this device
+	
 	modules: [
 		{
 			module: "alert",