Add references to Promise spec

As requested:
http://lists.w3.org/Archives/Public/public-fx/2014OctDec/0025.html

Generated from:

commit a34a193749a808750813a8a2227aa25617338261
Merge: 4c1f3ce 210128b
Author: Brian Birtles <birtles@gmail.com>
Date:   Mon Oct 27 15:25:42 2014 +0900

    Merge branch 'startTimeFixes'

    Posted about this to public-fx:

    http://lists.w3.org/Archives/Public/public-fx/2014OctDec/thread.html

    Since there was no opposing feedback I'm merging this.

commit 210128b7882d5b0d2ad0f1b8f8040e09bbe0ced5
Author: Brian Birtles <birtles@gmail.com>
Date:   Tue Oct 21 15:36:24 2014 +0900

    First stab at removing pause flag