Removed IsModified, changes are notified via the new "Changed" event on DataBlock.  Renamed ByteBlock to DataBlock.  Clean-up.
Removed IsModified, changes are notified via the new "Changed" event on DataBlock.  Renamed ByteBlock to DataBlock.  Clean-up.

BadCodebot/SRFS2,BadCodebot/SRFS2,BadCodebot/SRFS2