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
I don't know what an accessible media source is
Can't synchronize everything without magic
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
Merge pull request #63 from martinthomson/syncfromdifferentclocks

Clarify in section 4.1 that synchronization is only an intention because some tracks cannot be synchronized.
updated change log
Merge pull request #62 from martinthomson/constructedfromwat

"accessible media sources" changed to "existing media streams or tracks"
Fixed enabled/disabled mixup
bug h3_loading-and-playing-a-mediastream-in-a-media-element
Bug: missing session in Terminology-
Bug: away client->remote client
Bug it -> of ; reword ???
Bug: no change or -> no, nor ;

Problem here with "either"
Bug: asynchronously ... (when)
Bug: [Uu]ser[- ][Aa]gents?|UA