Chaos Night Upgrades.

1) Added Frenzy Food (CLASS Chaosfd.kod)
- Checks for active ChaosNight if not active does not work and deletes
itself.
- Adds 200 vigor
- Uses no stomach
- Weighs more than a mortal can hold (can only be given out globally)

2) Added Negative and Positive Karma Pots (NKarmaPot and PKarmaPot.kod)
- Checks for active ChaosNight if not active does not work and deletes
itself.
- Gives + or - 100 karma depending on which pot.
- Uses no stomach
- Weighs more than a mortal can hold (can only be given out globally)

3) Changed chaosnight.kod:
- Removed the now obsolete inkycaps
- Added the new pots, new frenzy food and added a few other items to
loot.

4) Changed player.kod:
- Added message ChangeKarma (amount)
- Could not find another message that changed players karma to a
definitive amount without calculation. This new message takes a single
int and changes the karma directly to that amount.

** All compiles with no errors, no server errors and all tested
thoroughly.