Bug fixing and new features for Mumu's Pilgrimage.

- Many Bug fixes
  - Rat queen not going to the thieves' guild.
  - Rat queen not going to the dragon.
  - Inactive ghost in village.
  - Renting a room and getting cheese instead (this could have been a feature).
  - Fix crash when looting.
  - Fix rooms with no music (you could hear a beep when entering them because the engine could not find the music for it)
  - Fix when you interact with the idol of Bastet and the ending sequence would not trigger.
- New and better temple music (I'm getting better at composing ;)
- Add an achievements screen at the end, with data such as 
  - the number of hit dice gathered, 
  - the number of kills and the name of the victims, 
  - the ending type,
  - and the alignment your character took throughout the game.
- Add icon and title to the game window.
- Small tweaks, such as 
  - Increasing arrow stack capacity.
  - Hiding the log box by default.
  - Add Medea's portrait in the castle.
  - Added a new ending. Now there are four different endings in the game.