Merge pull request #8 from OSTraining/master

Update from master
Add width/height params in xml
Add width/height to embed
Merge branch 'adapt-to-alledia-framework'

Conflicts:
	src/oswistia.xml
Fix #3, #9, #7, adding Pro Features and better structure

Improve the Free/Pro structure
Added features beyond the listed on the issue:
* resumable
* autoplay
* captions
* set specific volume

The video quality was disabled (ref #12), because that option is not working on the Wistia API.