Batch category addding.
Fixed sentence splitting, removing i flag and tightening abbrev. filtering.
Added randomness to generation of sentences.
Added 69 categories.

Added &redirect flag for better category names
Added shortcut keys for navigation on each screen.

Fixed timer not starting after resume

Tightened screen switching/hiding

Can scroll through cats with arrow keys.
Scrolling with arrow keys refined.

Working with filtered lists.