Merge pull request #70 from Sebsebeleb/master

fixed 100 hp monsters
Merge pull request #74 from Sebsebeleb/master

bug fixes
remove commented out code
race & class descriptions; class bonuses
halve xp required to advance
documentation update
Merge branch 'master' of https://github.com/Zireael07/Underdark
race-class.lua formatting + small fixes
potion ID fix
food rations & flask of water added at start
spears naming fix
monsters now drop equipment and corpses
help & readme update
colored and improved char sheet
Merge branch 'master' of https://github.com/Zireael07/Underdark
achievements
working stores code
fix feat descriptions; added skill enhancing feats
fixed #75 including max_skill_ranks
monster skills & darkvision; adjust spawn rate; add drow and goblin