[#42911737] Create a mejs command-line build script that uses the free Flex SDK to build flashmediaelement.swf
Merge branch 'master' of github.com:realgravity/mediaelement into flex_build

Conflicts:
	build/flashmediaelement.swf
[#43518335] Recreate SWC using Flash Pro CS6, Rebuild SWF using Flex SDK 4.6
[#43518335] Convert line endings to Unix/LF in AS files so git diffs work properly.
[#43518335] Fix all Flex compiler warnings (see build.sh for comments)
Create a global FlashMediaElementDisplay symbol that includes all the objects on the stage in the FLA file.
Expose the FlashMediaElementDisplay symbol to ActionScript.
Instantiate the FlashMediaElementDisplay object and add it to the stage in the FlashMediaElement class.
[#43518335] Replace tabs with two spaces.
Merge branch 'master' of https://github.com/realgravity/mediaelement into flex_build

Rebuilt merged swf with flex build.

Conflicts:
	build/flashmediaelement.swf
	src/flash/htmlelements/AudioElement.as
	src/flash/htmlelements/VideoElement.as
	src/flash/htmlelements/YouTubeElement.as
Merge branch 'flex_build' of https://github.com/realgravity/mediaelement into flex_build
some code