Removed Entity which is replaced by Character. Fixed constructors of all entities. Troll can now attack and get killed by demon. A rotten troll now disappears also.
Merge branch 'master' of github.com:wnr/cprog13-game

# By Mathias Lindblom
# Via Mathias Lindblom
* 'master' of github.com:wnr/cprog13-game:
  getDescription partly done

Conflicts:
	src/Player.cpp
Fixed bug in rand