alysia's pearlfish fixed (only calculate duration, removed start and end of call as they cannot be predictable)
Added Joda time and Started the acceptance testing using Jmock. NOTE: acceptance testing not yet done, I pushed so you guys can see how JodaTime works
Merge remote-tracking branch 'origin/master'

Conflicts:
	.idea/workspace.xml
	src/com/acmetelecom/Runner.java
new calculation of the cost and peak/off-peak durations