AutoReleasePool Exception if Short Description is Too Large

[Haravikk]

This is an issue that comes up a lot for me when dealing with Anime, where some overzealous users put the entire plot of an episode into its description in minute detail, rather than a summary.

Anyway, since the descriptions from the TheTVDB are used to fill both the short and long description fields, this will put the short description over some kind of limit, preventing the file from being written and leaving it in the queue with an error.

Unfortunately the error is misleading, as it refers to an AutoReleasePool error, however shortening the short description will fix the issue easily enough, I just have to remember to do-so.

Currently MetaZ seems to only have a soft recommendation on short description length, using a character count that can become negative, however there's clearly some internal limit, I believe around 1024 8-bit characters.

While it may be possible to support more, I believe the best "fix" would be:

• Do not allow a file to be queued if its short description exceeds the hard limit.
• Provide a warning if a short description is over 512 characters (to encourage shortening it anyway).