Added collect sun.

Used a for loop to check if player has clicked on sun, there is probably
a better way witch I do not know yet. will probably change it to
something better in the future. Also if player clicks on sun it does not
place a peashooter under it.
Merge branch 'master' of https://github.com/nbu-gamedev/gardenwar-2014

Conflicts:
	src/Main.cpp
	src/world.cpp