Added flash manual unit test.
TestRunner will open the swf when env var NME_UNIT_TEST=flash.
Will be changed to run in a browser with Selenium.
TravisCI: some progress on testing BitmapData
TravisCI: install haxe with --force-yes
Improved getTextFormat and a minor fix to setTextFormat
Minor ByteArray fix
Merge branch 'master' of https://github.com/haxenme/NME into contribution