Moved passive IE feature detection function to Global.js, so that it …

…can be used anywhere (currently also being used by waves.js), and adjusted sidenav.js to included the new function

js/global.js

@@ -442,3 +442,13 @@ M.throttle = function(func, wait, options) {
     return result;
   };
 };
+
+/* Feature detection */
+var passiveIfSupported = false;
+try {
+    window.addEventListener("test", null, 
+        Object.defineProperty({}, "passive", {
+            get: function() { passiveIfSupported = { passive: false }; }
+        }
+    ));
+} catch(err) {}

js/sidenav.js

@@ -129,11 +129,11 @@
       this._handleCloseReleaseBound = this._handleCloseRelease.bind(this);
       this._handleCloseTriggerClickBound = this._handleCloseTriggerClick.bind(this);
 
-      this.dragTarget.addEventListener('touchmove', this._handleDragTargetDragBound, { passive: true});
+      this.dragTarget.addEventListener('touchmove', this._handleDragTargetDragBound, passiveIfSupported);
       this.dragTarget.addEventListener('touchend', this._handleDragTargetReleaseBound);
-      this._overlay.addEventListener('touchmove', this._handleCloseDragBound, { passive: true});
+      this._overlay.addEventListener('touchmove', this._handleCloseDragBound, passiveIfSupported);
       this._overlay.addEventListener('touchend', this._handleCloseReleaseBound);
-      this.el.addEventListener('touchmove', this._handleCloseDragBound, { passive: true});
+      this.el.addEventListener('touchmove', this._handleCloseDragBound, passiveIfSupported);
       this.el.addEventListener('touchend', this._handleCloseReleaseBound);
       this.el.addEventListener('click', this._handleCloseTriggerClickBound);