* Instead of shared and separate CSS, isolate by class for easier mixin-ability
* .list-unstyled is now used as a mixin in .list-inline

* Added a new mixin to calculate rems and pixels for IE fallback
* Updated the body, p, and .lead elements to use the new .font-size() mixin
* New mixin has default value of 14px or 1.4rem
* Still needs exploration, and change this means lots of work rejiggering margins and line-heights
* Related, started to reorganize the mixins a bit to call out mixins that are used by the framework and not utilities or snippets

* Uses .btn on label elements with nested checkbox and radio controls within
* Updated examples to reflect change in HTML and CSS
* Had to add .active all buttons for proper state highlighting (mimicing the :active pseudo state)
* Still needs JavaScript plugin updated by @fat

* Add new grid mixins adapted from Preboot (http://github.com/mdo/preboot)
* Drop the @grid-row-width and @grid-column-width variables
* Add the @grid-float-breakpoint variable, as used in Preboot
* Add support for .push* and .pull* classes for column ordering manipulation
* Document all the things

Remove margin between buttons in button groups; use border-radius mixins to avoid reseting border-radii that don't need resetting

* Change .brand to .navbar-brand
* Change .btn-navbar to .navbar-toggle
* Redesign navbar toggle to be a bit lighter and wider
* Center align the navbar brand with a max-width of 200px (to minimize hit area) while still centering

Bring back the label, make it scale somewhat with the font-size of the parent using percentages and ems