* Reorganize layout
* Add input group var
* Add legend border var

* Update `.nav-divider` mixin to simplify to a 1px line (one value
instead of two in parametric mixin)
* Rename and consolidate dropdown caret vars
* Add vars to Customizer

* Drop the `rgba()` border and fallback because fuck that noise
* Add vars to customizer
* Remove rogue `:`

* Remove dupe hover color var (again, it's not necessary to have it's
own var here since we're controlling it via `opacity`)
* Add to customizer

* Remove `@carousel-control-hover-color` since that's just the same as
the default control color and all we change is `opacity` (it's required
for specificity).
* Add vars to customizer
* Update customizer nav to include new section
* Remove the `li` from the var names
* Consolidate and simplify `text-shadow` vars

Conflicts:
	dist/js/bootstrap.min.js

update carousel js docs to reflect leading .glyphicon

  https://github.com/twitter/bootstrap/pull/6342 icons section
  mentions the change to using glyphicon base class
  this adds it to the docs

Use input type `password` for the password field in the CSS documentatio...

getting-started.html: add <code> around mention of `placeholder`

* Cuts  close to 100 lines of CSS from the table CSS
* File size aside, this drastically simplifies CSS for folks looking to
build on top of the `.table-bordered` option as a starting point

Conflicts:
	dist/css/bootstrap.min.css

@badge-bg should be @gray-light not #f5f5f5

Updated readme.md to reflect the latest changes in directory structure