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.
Merge 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
	grading-drivers/week-2-assignment-1/src/edu/vuum/mocca/SimpleAtomicLong.java