typo: flies => files
Merge pull request #132 from uniqname/patch-1

typo: flies => files
flies -> files in docs/jshint-options
fix typos in jshint_test.js
Merge pull request #134 from tonylukasavage/patch-1

fix typos in jshint_test.js
Squashed commit of the following:

commit 2f7c82852079adc591f25f3a68fb3100fb0686dd
Author: shinnn <dminor.sw@gmail.com>
Date:   Tue Jan 21 13:23:33 2014 +0900

    Update grunt-contrib-nodeunit

commit 39b6a6435ee94aa38b12592a9cb5edbbbe88d69b
Author: shinnn <dminor.sw@gmail.com>
Date:   Tue Jan 21 13:23:23 2014 +0900

    remove grunt.util._.clone

    Because grunt.util._ is deprecated.

Closes gh-136.
Updates for 0.9.0
improve options doc formatting
add doc on how to use external reporter
bump deps
Replace grunt.util.hooker with hooker module
Merge pull request #141 from shinnn/master

Remove grunt.util.hooker
Update copyright to 2014
Enhancing the readability of the console output.