added setters for auth object through Soundcloud class.
Added SoundcloudFacade::refreshAccessToken()
added setters for auth object through Soundcloud class.
Added SoundcloudFacade::refreshAccessToken()
DocBlocks minor changes - SoundcloudFacede
DocBlocks fix - SoundcloudFacede
Merge pull request #9 from njasm/enhancement-auth-setters

Auth setters and added method SoundcloudFacade::refreshAccessToken()
DocBlock fixes