Merge branch 'master' into v4

Conflicts:
	Gruntfile.js
	dist/css/bootstrap-theme.css
	dist/css/bootstrap-theme.css.map
	dist/css/bootstrap-theme.min.css
	dist/css/bootstrap.css
	dist/css/bootstrap.css.map
	dist/css/bootstrap.min.css
	dist/js/bootstrap.min.js
	docs/_data/glyphicons.yml
	docs/_includes/components/alerts.html
	docs/_includes/components/badges.html
	docs/_includes/components/breadcrumbs.html
	docs/_includes/components/button-dropdowns.html
	docs/_includes/components/button-groups.html
	docs/_includes/components/dropdowns.html
	docs/_includes/components/glyphicons.html
	docs/_includes/components/input-groups.html
	docs/_includes/components/jumbotron.html
	docs/_includes/components/labels.html
	docs/_includes/components/list-group.html
	docs/_includes/components/media.html
	docs/_includes/components/navbar.html
	docs/_includes/components/navs.html
	docs/_includes/components/page-header.html
	docs/_includes/components/pagination.html
	docs/_includes/components/panels.html
	docs/_includes/components/progress-bars.html
	docs/_includes/components/responsive-embed.html
	docs/_includes/components/thumbnails.html
	docs/_includes/components/wells.html
	docs/_includes/css/buttons.html
	docs/_includes/css/code.html
	docs/_includes/css/forms.html
	docs/_includes/css/grid.html
	docs/_includes/css/helpers.html
	docs/_includes/css/images.html
	docs/_includes/css/less.html
	docs/_includes/css/tables.html
	docs/_includes/css/type.html
	docs/_includes/customizer-variables.html
	docs/_includes/getting-started/accessibility.html
	docs/_includes/getting-started/disabling-responsiveness.html
	docs/_includes/getting-started/download.html
	docs/_includes/getting-started/whats-included.html
	docs/_includes/js/alerts.html
	docs/_includes/js/buttons.html
	docs/_includes/js/carousel.html
	docs/_includes/js/collapse.html
	docs/_includes/js/modal.html
	docs/_includes/js/overview.html
	docs/_includes/js/popovers.html
	docs/_includes/js/tabs.html
	docs/_includes/js/tooltips.html
	docs/_includes/nav/components.html
	docs/_includes/nav/javascript.html
	docs/_jade/customizer-variables.jade
	docs/_layouts/default.html
	docs/about.html
	docs/assets/css/docs.min.css
	docs/assets/css/src/docs.css
	docs/assets/js/customize.min.js
	docs/assets/js/raw-files.min.js
	docs/assets/js/src/customizer.js
	docs/customize.html
	docs/dist/css/bootstrap-theme.css.map
	docs/dist/css/bootstrap.css
	docs/dist/css/bootstrap.css.map
	docs/dist/css/bootstrap.min.css
	less/glyphicons.less
	less/mixins/vendor-prefixes.less
	less/navbar.less
	less/popovers.less
	less/tables.less
	less/theme.less
	less/tooltip.less
	less/variables.less
	package.json
	scss/_carousel.scss
	scss/_close.scss
	scss/_forms.scss
	test-infra/npm-shrinkwrap.json

docs/content/forms.md

@@ -236,6 +236,8 @@ Should you have no text within the `<label>`, the input is positioned as you'd e
 
 ### Selects
 
+Note that many native select menus—namely in Safari and Chrome—have rounded corners that cannot be modified via `border-radius` properties.
+
 Use the default option, or add `multiple` to show multiple options at once.
 
 {% example html %}
@@ -246,7 +248,11 @@ Use the default option, or add `multiple` to show multiple options at once.
   <option>4</option>
   <option>5</option>
 </select>
+{% endexample %}
 
+For `<select>` controls with the `multiple` attribute, multiple options are shown by default.
+
+{% example html %}
 <select multiple class="form-control">
   <option>1</option>
   <option>2</option>

docs/content/tables.md

@@ -433,6 +433,11 @@ Use contextual classes to color table rows or individual cells.
 
 Create responsive tables by wrapping any `.table` in `.table-responsive` to make them scroll horizontally on small devices (under 768px). When viewing on anything larger than 768px wide, you will not see any difference in these tables.
 
+<div class="bs-callout bs-callout-warning" id="callout-tables-responsive-overflow">
+  <h4>Vertical clipping/truncation</h4>
+  <p>Responsive tables make use of <code>overflow-y: hidden</code>, which clips off any content that goes beyond the bottom or top edges of the table. In particular, this can clip off dropdown menus and other third-party widgets.</p>
+</div>
+
 <div class="bs-callout bs-callout-warning">
   <h4>Firefox and fieldsets</h4>
   <p>Firefox has some awkward fieldset styling involving <code>width</code> that interferes with the responsive table. This cannot be overriden without a Firefox-specific hack that we <strong>don't</strong> provide in Bootstrap:</p>

docs/content/typography.md

@@ -160,12 +160,10 @@ Transform text in components with text capitalization classes.
 
 ## Abbreviations
 
-Stylized implementation of HTML's `<abbr>` element for abbreviations and acronyms to show the expanded version on hover. Abbreviations with a `title` attribute have a light dotted bottom border and a help cursor on hover, providing additional context on hover.
+Stylized implementation of HTML's `<abbr>` element for abbreviations and acronyms to show the expanded version on hover. Abbreviations with a `title` attribute have a light dotted bottom border and a help cursor on hover, providing additional context on hover and to users of assistive technologies.
 
 ### Basic abbreviation
 
-For expanded text on long hover of an abbreviation, include the `title` attribute with the `<abbr>` element.
-
 {% example html %}
 <abbr title="attribute">attr</abbr>
 {% endexample %}
@@ -344,10 +342,10 @@ Align terms and descriptions horizontally by using our grid system's predefined
   <dt class="col-sm-3">Euismod</dt>
   <dd class="col-sm-9">Vestibulum id ligula porta felis euismod semper eget lacinia odio sem nec elit.</dd>
   <dd class="col-sm-9 col-sm-offset-3">Donec id elit non mi porta gravida at eget metus.</dd>
-  
+
   <dt class="col-sm-3">Malesuada porta</dt>
   <dd class="col-sm-9">Etiam porta sem malesuada magna mollis euismod.</dd>
-  
+
   <dt class="col-sm-3 text-truncate">Truncated term is truncated</dt>
   <dd class="col-sm-9">Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus.</dd>
 </dl>