Add grunt.js build script

- Move Bootstrap LESS files into new subdirectory

- Change app.css to app.less, add @import's to utilize
Bootstrap variables and mixins

- Remove plugins.js and main.js

- Move Bootstrap JS plugins into new subdirectory

- Add new _main.js file with example DOM-based routing
script that works off the WordPress body_class

- lib/scripts.php has been updated to remove all extra
CSS and JS files and also places JavaScript in the footer
Merge branch 'master' into grunt
Fix grunt watch Bootstrap LESS directory
Update to Bootstrap v2.2.0
Merge master, update to Bootstrap 2.2.1
Merge branch 'master' into grunt
Merge branch 'master' into grunt
Merge pull request #606 from paulyoder/grunt

Merged changes in 'master' branch to 'grunt' branch
Merge master
Merge branch 'master' into grunt
Update to jQuery 1.9.0
Update Roots version in package.json
Close #646 - Replace ID's with classes
Close #645 - Fix for search with no result
Close #638 - Add add_theme_support for Nice Search
French Translation
Merge pull request #655 from LeoColomb/master

Update French translation
Added backslash to add_editor_style

Editor style css wasn't being applied for me until adding the backslash.
Use relative paths in README and docs TOC

https://github.com/blog/1395-relative-links-in-markup-files
Merge pull request #657 from petermartin/patch-1

Add backslash to add_editor_style