According to the docs, you just need to apply the `navbar-nav` to an
`<ul>` tag in a list-based navbar. In fact, `navbar-nav` seems to
override all the css properties set by `nav`.
Also, `nav-item` class should be used only for `<li>` tags, or in
conjunction with `<a>` tags to entirely avoid the list-based approach.
This commit removes the redundant `nav` class from `navbar-nav` `<ul>`
tags, moves `nav-item` from `<a>` tags to `<li>` tags and properly
adds `nav-item` class to `<li>` tags where missing.
Refs:
* https://v4-alpha.getbootstrap.com/components/navs/
* https://v4-alpha.getbootstrap.com/components/navbar/#nav
* add the svg icon as a partial so we can include it easily
* add the icon to the homepage
* drop .bd-booticon for svgs here
* rip out the import for .bd-booticon sass file
* Delete _booticon.scss
* indentation
* Update bootstrap-icon.html
* remove those
* Fixed dead link to browser list
The link to the list of browsers supported through Autoprefixer was dead, now updated to a working link.
* Updated label to display new file path
Changed the labeling on the updated link to show read as the new updated file path.
The link to package.json in the v4 docs was linking to package.json in the v3 source. Fixed to point to the correct v4 location. A change like this will need to be made for all branches on version 4 if you want the docs to be linked correctly (github may be smart enough to follow the link to the current branch if you are on github but it was wrong from the main site).
* Fix incorrect code indentation
* Remove unnecessary vendor prefix for `box-sizing` - all modern browsers now support this unprefixed
* Remove incorrect `<label>` and change static controls to readonly inputs
* Allow `<img>` elements without `src` to allow for `holder.js` images used in the docs, which lack `src` and use `data-src` instead
