* Fix deprecation messages on windows.
* Change mklink -> cp since windows links are not supported by git and doesn't work with git-cache in omnibus
** See https://groups.google.com/forum/#!topic/msysgit/arTTH5GmHRk for more info.
* Reorder chef-windows dependencies slightly for better performance.
Add DMG/PKG assets and bump Omnibus (gem) version
Temporarily disable dmg building in chef-client builds.
Pick up git-cache updates on omnibus-ruby & omnibus-software.
Merge pull request #139 from opscode/git-cache-test

git-cache updates for chef & chefdk