Added Offset for Left and Right Sticky menus.
Added openOnClick,offsetWidth attributes as well as setters.
When the Offset is greater than 0 the layer sticks out for the use to be able to tap/drag.
Updated the sample to show off the feature.
Merge branch 'master' of git://github.com/6wunderkinder/android-sliding-layer-lib into offset

Conflicts:
	Library/src/com/slidinglayer/SlidingLayer.java
fixed misnamed setter
Merge branch 'offset-pick' of https://github.com/Bizzby/android-sliding-layer-lib into Bizzby-offset-pick

Conflicts:
	Library/src/com/slidinglayer/SlidingLayer.java
* Fixed middle layer not going away on velocity swipes
* Re-enabled offset preference if the layer is selected out of middle