Simplified detach code for cells. Added a constructor to the Field class
for creating varied sizes of worlds.
Removed some code that doesn't make any changes to the world size. Cleanup
on a number of comments, Javadoc.
Merge branch 'master' of https://github.com/feanorancalime/comp-worlds-project-4

Conflicts:
	src/chord/Peer.java
	src/chord/PeerMessage.java
	src/gui/GameofLife.java
Code cleanup; removed some unused code.