startInternal now cleans up audio resources when the playback thread is finished. Added fix for undefned DBL_MAX
Fixed deployment target min should be 4.3 not 6.0
Fix STKAudioPlayer.progress property thread-related crash
Fixed thread related crashes in OutputRenderCallback
Updated test URLs to use abstractpath.com
Added ability to add http headers to a STKHTTPDataSource.
Merge pull request #128 from kwillick/master

Support adding http headers to a STKHTTPDataSource
Fixed HE-AAC format being stripped
Fixed URL for HTTP pointing to local file. Oops
merge with upstream