using MediaStreamErrorEvent to describe ended events
See https://www.w3.org/Bugs/Public/show_bug.cgi?id=26939
fix dup of settings dfn
remove dup <dfn> on getUserMedia
Keep it clean
Merge pull request #54 from martinthomson/unfws

Keep it clean
Merge pull request #51 from dontcallmedom/respec-bug3

Fix a couple of minor ReSpec bugs
Merge pull request #50 from dontcallmedom/onended

using MediaStreamErrorEvent to describe ended events
remove spurious unicode caracters in Promise<sequence>>
merge