Saker
Merge branch 'observer' of github.com:sebastiant/jchord into observer

Conflicts:
	src/testing/NodeTest.java
Partially done
Merge branch 'observer' of github.com:sebastiant/jchord into observer
Merge branch 'observer' of github.com:sebastiant/jchord into observer
Implemented some methods in node.java
Merge branch 'observer' of github.com:sebastiant/jchord into observer