Merge branch 'master' into develop

Author: Jawnnypoo

README.md

@@ -69,10 +69,32 @@ public void onCreate(Bundle savedInstanceState) {
 mAttacher.update();
 ```
 
+## Issues With ViewGroups
+There are some ViewGroups (ones that utilize onInterceptTouchEvent) that throw exceptions when a PhotoView is placed within them, most notably [ViewPager](http://developer.android.com/reference/android/support/v4/view/ViewPager.html) and [DrawerLayout](https://developer.android.com/reference/android/support/v4/widget/DrawerLayout.html). This is a framework issue that has not been resolved. In order to prevent this exception (which typically occurs when you zoom out), take a look at [HackyDrawerLayout](https://github.com/chrisbanes/PhotoView/blob/master/sample/src/main/java/uk/co/senab/photoview/sample/HackyDrawerLayout.java) and you can see the solution is to simply catch the exception. Any ViewGroup which uses onInterceptTouchEvent will also need to be extended and exceptions caught. Use the [HackyDrawerLayout](https://github.com/chrisbanes/PhotoView/blob/master/sample/src/main/java/uk/co/senab/photoview/sample/HackyDrawerLayout.java) as a template of how to do so. The basic implementation is:
+```java
+public class HackyProblematicViewGroup extends ProblematicViewGroup {
+
+    public HackyProblematicViewGroup(Context context) {
+        super(context);
+    }
+
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent ev) {
+        try {
+            return super.onInterceptTouchEvent(ev);
+        } catch (IllegalArgumentException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+}
+```
+
 ## Pull Requests / Contribution
 Development happens in **develop** branch of this repository, and Pull Requests should be filled against that branch.
 Any Pull Request against **master** will be rejected
 
+
 ## License
 
     Copyright 2011, 2012 Chris Banes