Ensure results of `Dir.glob` are sorted

This will ensure the `*.dmg` files are preferred for final publishing on 
Mac OS X.
Merge pull request #233 from opscode/schisamo/sort-package-paths

Ensure results of `Dir.glob` are sorted
Access attributes through the project
Upgrade to Omnibus 4.0
Remove RPM signing code (this is in Omnibus core now)
Remove example omnibus.rb and use a real one
Remove Vagrantfile (we have TK now)
Move packager resource files form files/ -> resources/
Remove todo.txt
Update .kitchen.yml to mount local Omnibus
Update Berksfile
Update README to follow new standards
Update project copyright headers
Update projects to use https:// URLs
Use default_root instead of hardcoding /opt for install_dir
Use new compressor and packager DSL methods
Remove useless comments
Remove resources_path (it is not needed)
Update chefdk overrides
Use new omnibus standards in chef-init