Commit
Changed main button, more sexy now! :))
Corrected size of child icon raymenu
Improved layout for AcrMenu, now can set it on Bottom-left of screen
Correct background button for ldpi
Changed all of formula for calculating distance of child, position of child...so now it can work fine on all devices. Just a piece of shi*t
Merge https://github.com/donnguyen/ArcMenu

Conflicts:
	library/project.properties
	sample/project.properties