closes #77 : [Android] separate left/right width

based on changes here: 
https://github.com/buptcoder/SlidingMenu/commit/80c4a2f6b47aad172a702c128756ce218d74768e
version bump and new build
Removed note about #77 as it is closed.
Merge pull request #118 from dbankier/master

closes #77 : [Android] separate left/right width