Improved Encumberance section on player info screen

Torso: (3)  2+1= 3  (75)
Arms:  (2)  2+2= 4  (60)

Bodypart: (Layers of cloth)  Cloth encumb + Layer/Overweight penalty = Total encumb  (Warmth)
Add: Catch CTRL+C and ask the player if he really wants to quit without saving. (Linux only)
Made some of the new house interior smashable

t_sink
t_bathtub
t_bookcase
t_pool_table
t_counter
t_table
Move furniture: Move all items within a container.
Move furniture: Removed container check -> items will move with bookshelvs/tables/chairs/...
Show percentage of current skill when learning from a book.

You learn a little about first aid! (76%)
Better check to find out if pos(x,y) is indoors.

Fixes opening windows while not standing on a floor tile.
Merge pull request #88 from OzoneH3/master

Some updates, see description