Integrating .jscsrc config lookup

* Priority order is -c value, .jscsrc, .jscs.json

* Broke cli-config into multiple methods

* Tests for all cli-config methods

* Updates to CLI module to use new functionality

* Update CLI tests to exercise changes to module

* Added mocha BDD "afterEach" method to JSHint predefs

Fixes #196
Closes gh-199
Integrating package.json config lookup

Fixes tests and adds more for new package.json config

Closes gh-213
Fix up cli test for node 0.8

* Make cli test execute synchronously

* Remove console.log statement