Added Classes.
Added first Version of Inventory Code
Added Exception classes
Added classes and methods
Added Initial Inventory to Player
Renamed Item.value to Item.goldValue()
Added Documentation for classes
Added Functions and fields to describe Itemtype
Added preliminary bonus
Merge branch 'master' into inventory-base

Conflicts:
	src/rogue/creature/Player.java
Added sum functions
Added first preparations
Added Code to show preliminary inventory interface.
Implemented Display of Inventory
monster

dummy monsterunterklasse, sowie möglichkeit für jedes level die
jeweiligen monster aufzurufen
start.txt und end.txt angepasst auf 80x30
deleted WorldReader classs, since it does the same as NewWorld, but Worse
Implemented First UI Version for Inventor
Merge branch 'inventory-base'
BUGFIX

fixed a bug, that caused Monsters to appear on unpassable Tiles, when
the world is created