Various changes.  Added -forcetitle option which, when used with -tvshow, will
overwrite the episode title in the .nfo file with the title determined from the
file. This is really only helpful for syndicated kids tv shows where thetvdb
has the individual 15 minute shows as one episode, and PBS combines multiple
shows into 1 30 minute show.

Another change is to look for mediafile.<extension>.plot and will use this to
overwrite the plot (this is for the same reason as the -forcetitle option).

Both of the above options are intended for use with my yet-to-be-released
mythtv script.

Various other changes that I can't remember.