[AndyB] Thread title manager 2.1

• Now allows moderators override the thread title to have lowercase first character even though Uppercase first is set in the options page.

• Added Date cutoff and Exclude forums to options page.

• Added Maximum characters to options page.

Added Allowed characters All and Multibyte to options page.

Added External file to options page.

Fixes issue with iOS Smart Punctuation. Single closing quote character is automatically changed to an apostrophe.