0.4.0

Added

• This Changelog
• rpg cd -f sets the hero location without initiating battles, intended for custom shell integrations
• rpg battle initiates a battle (with a probability) at the hero's current location.
• --quiet,-q option to reduce output while changing directories and printing the hero status.
• --plain to facilitate scripting around the hero stats.
• Documentation for shell integrations.

Changed

• General command overhaul, now all actions are done via a subcommand: rpg cd, rpg stat, etc., with status printing being the default.
• rpg cd without args moves the hero to home and rpg cd - moves it to $OLDPWD (when present) to match the cd behavior 4ba4c59
• --shop,-s renamed to buy,b and --inventory,-i renamed to use,u f737a81
• Removed most empty lines from output.