* Refactored plugin to be more powerful in loading jslintrc
  * Walks up directory tree from the current file's location
  * If not found, it will default to ~/.jshintrc
  * If not found, use module's defaults
* Fixed issue that prevented having .jshintrc in multiple lines
updating jshint to 2.1.2
[Fixes #11] merging relative .jshintrc support