First draft RelNotes for Nov 5, 2014 release

@mhoeber @srpearce @lamagnifica @explorerleslie @shnayder 
Here's a first draft of release notes -- please review. 
A known issue is that the link to the Developer's Guide is broken.
suggest different word instead of repeating "changes" 
is this maybe drawing attention to an earlier oversight, that we did not keep up with software when it was updated?