OpenFL support (see jgranick/md-haxebinding#29)

Basic implementation of OpenFL support.
Accomplished mainly by copying the existing NME files and adjusting them for OpenFL.
Tested in MonoDevelop 3.1.1 (Mac OS X 10.8.4).
bumped version to 0.4.1
Merge pull request #30 from itavero/openfl-support

Added OpenFL Support