remove backgroundColor

Fixes #32
Merge pull request #33 from manumaticx/patch-1

remove backgroundColor
Update README.md

Fixed wrong Alloy beginning tag.
Merge pull request #34 from joaoveiga/patch-1

Update README.md
autoFill width and height

Fixes #36
Updated Readme to include latest changes and make it easier to start using the module
Merge branch 'patch-2' of https://github.com/manumaticx/Ti.DrawerLayout