[feature] adding keybaord shortcut for random theme

Author: zombieFox

js/keyboard.js

@@ -48,6 +48,12 @@ var keyboard = (function(){
 control.render();
 data.save();
 };
+// ctrl+alt+r
+if(event.ctrlKey&&event.altKey&&event.keyCode==82){
+theme.random();
+theme.render();
+data.save();
+};
 },false);
 };