Changed the interface of test
# WARNING: head commit changed in the meantime

Merge branch 'master' of
https://github.com/cmusv-sc/Practicum2014-Ericsson-Media.git

Conflicts:
	src/main/java/edu/cmu/mdnsim/nodes/NodeRunnable.java
Audit the reset functionality.
Audit the tasks followed by while loop in each NodeRunnable.run().
Different tasks are executed in different events.
Refactor Reset test cases to test Relay node as well.
Merge & Fix the bug
[Bug]WorkConfigFactory.singleStreamTwoFlows() adds sink1 to flow2.
Merge branch 'master' of
https://github.com/cmusv-sc/Practicum2014-Ericsson-Media.git

Conflicts:
	src/main/java/edu/cmu/mdnsim/nodes/NodeRunnable.java
	src/main/java/edu/cmu/mdnsim/nodes/ProcessingNode.java
	src/main/java/edu/cmu/mdnsim/nodes/RelayNode.java
	src/main/java/edu/cmu/mdnsim/nodes/SinkNode.java
	src/main/java/edu/cmu/mdnsim/nodes/SourceNode.java