New stuff:
* Adds `.has-feedback` and `.form-control-feedback` to show icon-based
form feedback to users. Fixes#11836.
* Removes the `width: 1em` on `.glyphicon` because it makes it
impractical to resize the width of all icons, even if they’re not
“empty” (e.g., a simple `.glyphicon { width: 30px; }` wouldn’t work,
nor would a class preceeded by a parent class.
Clean up:
* Sets `width: auto;` on all `.form-control`s within inline forms.
* Removes all the inline `select` menu `width` styles because all
inputs are now `auto`.
* Update form states docs to separate out sections better.
* Fixes#11055: add mention of select menu styling on Android stock
browsers with included optional fix
* Update IDs and docs nav to include bookmark links to each section
* Add callout to navbar docs about fixed position, inputs, and virtual
keyboard
* Adds nav link to sidebar for contextual classes
* Refactors to use prefixed classes, like .list-group-item-info, instead of chained classes
* Adds default and linked variations to example in docs
URLs without protocols get "file:" prepended when their document is
loaded as a file. Make sure the docs can always be opened by
specifying a protocol.
Twitter's widget library[1] provides an async snippet to inject the
script tag later. Since widgets.js came before the local JS, if
twitter.com took long to respond it would prevent subsequent
synchronous script tags.
[1] https://dev.twitter.com/docs/tfw-javascript
jQuery.com uses Google Analytics and so sets a cookie when you visit
the site. When you request jquery.js from its CDN, code.jquery.com,
you take a hit from sending your previous GA cookie in the request.
Google Hosted Libraries[1] and googleapis.com never set cookies.
[1] https://developers.google.com/speed/libraries/devguide
* Fixes unrelated typo in readme
* Add new Welcome section with history, team, callouts, and community
subsections
* Redesigns callouts to be a bit lighterweight with colored headings
