Initial support for Volley (and SPDY Transport with OkHttp)
Added Volley support to InfoFragment
Refactoring: Added ExtendedImageCache. LRUDiskCache results are now being asynchronously injected in GdgStack
Rewrote ModelCache (2 staged, MemLRU, DiskLRU), Cached content will be presented when offline
Merge pull request #1 from gdg-x/volley

Transition to Volley (including a major rewrite of our Caching Framework)