fix #104
most dialogs now obey screen size
remove exit keybinding for Quit dialog
fix sling weight
update Readme
add missing keys to controls screen
level-up screen now displays class points and the like
tooltips now display weapon type (simple, martial etc.)
re-added a crash course to d20
moar documentation
commented out shoot talents to stop them trying to shoot swords
fix #101 and spell descriptions
Revert "commented out shoot talents to stop them trying to shoot swords"

This reverts commit 3c308e0c6e592790aa268e9017f26ceabcc61136.
fix shoot lua errors, thanks Grazz!
add missing file
fix typo
reach weapons!!!
some info on how spells are coded
fix fire beetle AC & color
fix polearm & limit feedback to the player