refactored power crystal functions so monsters can use them
edited code to allow mobs to pick up items
added full msg_history to display by pressing 'p'.  Also added ability for mobs to pick up items from the ground and to use a random item from their inventory
Another multi-commit.
Added Menuobj to allow colors and characters to be displayed in the menu.
Fixed turns from incrementing if walking into a wall.
Enemies drop all items when they die.
Walking over items will display them to the message window.
display full message history pressing 'p'