Removed the term "hook" since they aren't really being used as hook methods.
Added/enhanced various files.
Fixes.
fixed a comment.
Made acquire() and release() private.
Enhanced the documentation.
Added unit tests.
Update PlayPingPong.java

moved formatting of output string to thread safe method. & fix logic bug.
updated Assignment Desc.
Merge pull request #44 from mawalker/master

Update to Assignment Desc. & concurrency bug fix
Added bug fixes.
erge remote-tracking branch 'upstream/master'

Conflicts:
	assignments/week-2-assignment-1/src/edu/vuum/mocca/SimpleAtomicLong.java
	assignments/week-3-assignment-2/src/edu/vuum/mocca/SimpleAtomicLong.java