Improve dblclick on tabs header (no text selection)

Author: SamyPesse

client/resources/stylesheets/layouts/lateralbar.less

@@ -13,6 +13,7 @@
 		color: @codeboxLateralbarColor;
 		text-shadow: 0px 0px 2px rgba(0,0,0,0.6);
 		.transition(width @lateralTransitionSpeed);
+		.user-select(none);
 
 		.lateral-menu {
 			position: absolute;

client/views/components/tabs.js

@@ -437,7 +437,7 @@ define([
         },
 
         // Open default new tab
-        openDefaultNew: function() {
+        openDefaultNew: function(e) {
             this.trigger("tabs:opennew");
         }
     }, {