Update dependencies.
Update jquery to v1.11.0.
Update respond.js to v1.4.2.
Use grunt-contrib-less to minify the css files with clean-css.
Merge pull request #127 from XhmikosR/grunt-contrib-less

Use grunt-contrib-less to minify the css files with clean-css.
Merge pull request #128 from XhmikosR/update-deps

Update deps
Update html5-boilerplate to the latest git.