Updates corresponding to 2015-04-27

Updates corresponding to 2015-04-09

Update change history

December 2014 updates

November 2014 updates

Cookbooks corresponding to 2014/09/05 updates

Cookbooks corresponding to the 2014 October updates

Announcement: http://blog.travis-ci.com/2014-10-08-october-2014-build-environment-update/

Cookbooks corresponding to 2014/09/05 updates

Cookbooks corresponding to the August 2014 updates

update pypy recipe to work with updated tarball downloads

also a little cleanup