Now navbars have their own float utility classes, mixin-ed versions of
`.pull-left` and `.pull-right`.

* Removed chained `.navbar-nav.pull-right`
* Added `.navbar-left` and `.navbar-right` as mixins of the default
float utilities, but only above the `@grid-float-breakpoint` to match
the new navbar behavior
* Updated components docs to match the new changeas
* Added callout about component alignment here to explain the new
classes

Swapped input-lg and input-sm

Fixing my own error. Thanks to @kyleledbetter for reporting.

BS3: Navbar overhaul

Conflicts:
	dist/css/bootstrap.min.css

fix mixin code example

BS3: Drop the accordion for the panel (fixes #8648)

Conflicts:
	dist/css/bootstrap.min.css

Added pagination-size mixin

Added input-size mixin

BS3: `.btn-group`s for your `.btn-group`s

Fixes #9415

patch highlighting hint

* Deletes the accordion.less file
* Extends the panel to be collapsible with our JS plugin
* Supports panel color variations