Gapless Playback update.

For a long time, in order to get gapless playback to work reliably, I have been enabling the setting "Default to Fixed Indexing" in the iTunes section of BitPerfect's Preferences Window.  However, I have noticed that, since performing the latest 11.2 update to iTunes, gapless playback has been problematic. Today I tried disabling "Default To Fixed Indexing", and now gapless playback is working properly again.  Users encountering gapless playback problems might like to try doing the same thing.