updated code assignment
Latest code for assignment 2
Updates to the SimpleSemaphore
Updates to SimpleAtomicLong
refactoring of simpleatomiclong
Adding updates.
Merge branch 'master' of github.com:phillyger/POSA-14

Conflicts:
	assignments/week-2-assignment-1/src/edu/vuum/mocca/SimpleAtomicLong.java
	assignments/week-2-assignment-1/src/edu/vuum/mocca/SimpleAtomicLongMultithreadedTest.java
	assignments/week-3-assignment-2/src/SimpleSemaphore.java
	grading-drivers/week-2-assignment-1/src/edu/vuum/mocca/SimpleAtomicLong.java
Added semaphore assigment 3 code and fixed merge issues