Add simple testing for log.js
Add unit test for same name, different directory
Available log methods are bound by the output _levels.  Levels was missing the basic 'log' level as well as some expected console api methods like warn.  Modified to use warn and info for warn and info, and add log to the levels to resolve 'log has no method log' issue #12
Merge pull request #13 from kwarismian/master

Fix Issue #12, add unit tests for logging