Refresh metadata button on WebOs client

[TheDreadPirate]

If you don't have real time monitoring you either have to manually refresh or wait for the scheduled task to initiate a refresh (runs every 12 hours). Keep in mind that if your media is stored on a network share, real time monitoring isn't supported by the network file system. Only turn on real time monitoring for directly attached storage.

Most of the TV clients do not have many of the "admin" functions exposed at the same locations as the browser/android/JMP clients.