Initial file deletion over smb or nfs

Needs a lot of testing before it is finished
Creating and deleting of files now use the xbmcvfs module

This is an abstraction over the os module that allows local paths as well as smb, nfs or afp style paths
Fixed a bug in tv show moving with season folders
Removed directory creation methods

The current implementation creates directories on the fly when needed for a move
Removed updating of paths in XBMC database after move

If the video was moved within XBMC's watched folders, an update will suffice in correcting the paths.
If the video was moved outside of XBMC's watched folders, it will never get scraped by XBMC again.
Either way, the function was obsolete.