add support of HLS playback using HLSProvider

preliminary work. does not work yet.
complete HLS support, tested successfully with several playlists
play/pause/seek/volume control is working
update with latest HLSProvider.swc
contains latest bugfixes and improvements
provide more test streams in hls test page
fix issue when calling play() while manifest is not retrieved yet
Merge latest, update swc path in fla
Implement latest HLSProvider.swc
Move local build files into build directory
Added x-mpegURL type in src files
Merge pull request #1 from lsvt-casey/master

Merged upstream
get rid of Flash Builder, use Flex to build
inspired from https://github.com/johndyer/mediaelement/pull/1008
introduce flash/flashmediaelement.swc that contains graphical resources
clean up compilation warnings
update to HLSProvider.swc v0.7.1
Merge branch 'master' of https://github.com/mangui/mediaelement into mangui-master

Conflicts:
	src/flash/htmlelements/VideoElement.as
Merge branch 'mangui-master'

Conflicts:
	src/flash/FlashMediaElement.as
	src/flash/htmlelements/VideoElement.as