Emotion 1.7.0

Changes since Emotion 1.0.0:
-------------------------

Additions:
	- Add support for "playback_started" callback to generic player.
	- Implement SPU switch for generic/vlc.
	- Sync rendering with Ecore_Animator.
	- Track pending object for proper shutdown.
	- Start handling embedded hardware customization.

Fixes:
	- build out of tree.
	- stride of all YUV video
	- fix race condition in gstreamer render function on shutdown and file set.

Improvements:

Removal: