Rename interactions

The idea behind the naming scheme is that for example
for `DragRotate`, `Rotate` is the action and `Drag` the
gesture that issues the action.

test/spec/ol/map.test.js

@@ -144,9 +144,9 @@ describe('ol.Map', function() {
         keyboard: false,
         mouseWheelZoom: false,
         shiftDragZoom: false,
-        pan: false,
-        rotate: false,
-        zoom: false
+        dragPan: false,
+        pinchRotate: false,
+        pinchZoom: false
       };
     });