added cell type to Cell
added behaviours, added methods in cells, chagnes in world, added clear method to keybaord and world
merged with josef
Commit 2.0

-Flee
-MoveTowards
-Mate
Merge remote-tracking branch 'koen/master'
placed methods in behavior. added temporary random cell type selector to clicker
Commit 2.1 Robin

-Mate fix
added populate
removed class files
merged with robin
fixed (hopefully) .gitignore
jojo
Merge remote-tracking branch 'koen/master'
merged with koen
move behaviour is pretty much done, but added hunt behaviour added changes to cell to accomodate
merged with upstream
added mutator function