#9 Beds building and finally... pause the game !

Finally you can destroy buildings! You won't need to stick with your missclicked failures anymore !

You can now build beds!

Now the citizens look for their bed, if one is attributed to them, and for any if not.

UI: the workshop window tells you how many object you'll produce.

Bugs corrected:

-position of the citizen recalculated.

-message system showing improperly.