Set grunt-bower-task install option to false.
Added grunt-contrib-imagemin, grunt-contrib-jshint, jshint-stylish tasks to Grunt. Changed Sass compiler task setup (turns out there is no need to compile all the SCSS files in the /scss folder!)
Removed Bootstrap stuff. Bourbon Neat FTW!
Updated templates to refer to the correct /assets sub-folder with the compressed images.
Removed unnecessary imports in all the non-partials.