tweak media type
Improve media layout
Fix ProviderDataTransformer
Fix typo
Fix test issue with UploadedFile
Improve Media validation if the media is not valid
Add image preview
Added Confguration to support OpenCloud based CDN's based on OpenStack, and also Rackspace.
Changed id to key in gaufrette.xml
Fixed app/AppKernel Notes in installation.rst
Added opencloud lib as suggested library to composer.json.
Fixed Composer.json spacing issue for suggested dependency.
Fixed configuration.php, fixed installation.rst and composer.json per rande's notes.
Fixed installation.rst per rande's Notes.
Merge pull request #411 from cdwlighting/master

Added Configuration support for Rackspace and other OpenStack Vendors.
Fix validation to use interface
Fix translation
Improve validation
Remove toString from the Interface
Change validation.xml to work with symfony ~2.2
Fine tune validation for MediaType
Catch exception if the provided media is not an Image