Clarify all pull requests should target master
Merge pull request #484 from jberezanski/contributing-branch

Clarify all pull requests should target master
(doc) Update release notes for 0.9.8.24

 - Updated changelog
 - Updated chocolatey.nuspec (need to add some automation for these to pull
   from somewhere when building the package)
Merge branch 'stable'

* stable:
  (doc) Update release notes for 0.9.8.24