Launcher skill improves your speed at reloading that type of launcher.  Dexterity improves or penalizes your speed at reloading anything.
New debug action - gain experience.
Complete help file on skills.
Make the text area a bit smaller, so the instructions don't appear to be part of it.
New testing action - gain experience.
help_screen() doesn't take a line number anymore - that didn't work well since the cuss element makes its own line divisions.  Instead, it takes a term, and scrolls to the first line that begins with that term.
New function - Player::gain_experience().  Fixed some bugs and made some color changes to Player::skills_interface().
Reorder some switches, and add skill_type_user_name(), which returns the user-facing name of a skill (e.g. "First Aid" instead of "first_aid").
Use light gray text instead of white text in popups.