[pvr.wmc] 0.2.98 (gotham backport of 0.3.98)

pvr.wmc Release 0.2.97
- support receiving notifications from the backend
- add notification for new backend version available
- send client time to backend and add notification for clock drift warning
- provide client name and OS to backend on more non windows platforms

pvr.wmc Release 0.2.98
- add wake on lan functionality
- support PlayCount/WatchedStatus of recordings being handled in the backend