[rackspace|storage] refactored storage/cdn.
Merge branch 'master' of github.com:fog/fog into cdn
[rackspace|cdn] more refactoring
Merge branch 'master' of github.com:fog/fog into cdn
Merge branch 'master' of github.com:fog/fog into cdn
[rackspace|storage] tweaked directory implementation; added directory model tests
[rackspace|cdn] more refactoring of cdn
[rackspace|storage] updating to return true after saving directory
Merge branch 'master' of github.com:fog/fog into cdn
Merge branch 'master' of github.com:fog/fog into cdn
[rackspace|storage] added ios_url and streaming_url methods to directory and file; added more tests
Merge branch 'master' of github.com:fog/fog into cdn
rebasing cdn branch with latest master
Merge branch 'master' of github.com:fog/fog into cdn
Merge pull request #1559 from rackspace/cdn

[Rackspace|Storage] Refactor Storage
rebasing with master