"$or" changes
Add $or functionality and fix typos
Add $or functionality to find and tests for $or
Merge branch 'master' of https://github.com/jeffreybrowning/whiskeynode

Conflicts:
	tests/test_whiskeynode.py
	whiskeynode/whiskeycache.py
Merge pull request #2 from jeffreybrowning/master

Add $or functionality to find(), as well as tests for $or