display contextmenu 1px away from mouse

plugins/c9.ide.ace/ace.js

@@ -1764,11 +1764,11 @@ define(function(require, exports, module) {
                 
                     // Set Gutter Context Menu
                     if (ui.isChildOf(gutter, target, true)) {
-                        mnuGutter.show(e.x, e.y);
+                        mnuGutter.show(e.x, e.y, "context");
                     }
                     // Set main Ace Context Menu
                     else {
-                        mnuAce.show(e.x, e.y);
+                        mnuAce.show(e.x, e.y, "context");
                     }
                     return false;
                 });

plugins/c9.ide.ui/menus.js

@@ -946,7 +946,9 @@ define(function(require, exports, module) {
                 aml.removeChild(item.aml);
             }
             
-            function show(x, y) {
+            function show(x, y, type) {
+                if (type == "context")
+                    y++;
                 lastCoords = { x : x, y : y };
                 aml.display(x, y);
             }