0.5.0

Added

• a rpg reset --hard flag to remove data files and forget information from previous plays #46
• Quest system #47
• Tutorial quests #49
• rpg ls command to look for chests at the current location #51
• Example sh file #54
• Poisoned and burning status effects #48

Changed

• Tombstones are found with rpg ls instead of automatically #52

Fixed

• When hero dies twice in the same location, tombstone chest contents
  are merged instead of overridden #73