Various cleanup

Improve tooltip for Bat-Blind Vision.

Use meleeTalent function to clean up talent code.  Clean up some comments; I'm
going to leave attack talents' speed alone until it's time to work on that
part of the game.

Bugfix: A missed Fire Slash failed to display its "near miss" message.

Add string.lowerFirst.  Bump engine version to 1.1.0.