mozilla-b2g/gaia — pull request #18113 by steveck-chung (2014-04-09 10:23:26+00:00)
Title: Bug 988772 - [tarako][buri] sometimes contact index shows nothing when tap on a index

- Hide overlay if touched object is not the shortcut letter or icon.
- Reset lastY when touch end to prevent the next touch which is near the last touchend position.
- Add integration test for scrolling behavior.