Remove-method for item Containers
Items print their name as __str__
Fixed pre-game update and catch KeyboardInterrupt

The screen will now be preparedbefore it is drawn first, so that
e.g. the visible part of the map is updated during the first drawing
cycle.

Also, KeyboardInterrupt is fetched and the game is saved.
Play view: Improved skill/round output
Fixed WieldWeapon view: string pos., inventory and unwielding

The keyboard info string was printed in the wrong place.
Unwielding didn't work, wrong elif.
Wielded weapon was not removed from inventory.
Ignore savegame-files