- Bug fixes and design improvements.

Updated invisibles rendering. Now uses more intuitive invisible character representations.
Adds new help book.
Plenty of performance improvements (and more under work to be released in the next version).

Fixes several preferences not working properly.

Improved text editing performance on large files.
Improved window dragging through title bar. You can now use the line-numbers column to drag the window as well.
Fixes a few edge-case bugs/crashes.