Added class prefix VM  to project.
Added VM class prefix to app delegate and view controller.
 - Added VMWebVideoManager. Includes imageCache pointer, which is set in init. Also includes sharedInstance singleton.
 - Added VMVideoCache. Includes lots of declarations. Also includes sharedInstance singleton.
 - Added RUSingleton, which provides singleton code. It's part of a larger library I often re-use.
VMVideoCache: Added init methods, some initial setup of necessary properties, some nsnotifications we want to respond to, and some disk cleaning methods.
Caching and downloading works
Prefetcher compiles
Merge pull request #2 from mverderese/mike_development

Mike development