Merge remote-tracking branch 'bootstrap/v4-dev' into joblocal-bootstrap4

* bootstrap/v4-dev: (979 commits)
  Add aria-label to docs search field
  Remove random cursor: default from pill nav (twbs#21835)
  Allow button toolbars to wrap (twbs#21826)
  fixes twbs#21567
  grunt (fixes twbs#21819)
  Add align self to navbar brand (twbs#21626)
  Rename order utilities to intended class names (twbs#21739)
  Pixel perfect navbar toggler (twbs#21821)
  Update _custom.scss imports in other builds (twbs#21825)
  Allow flex-based navs to wrap like they used to (twbs#21824)
  Remove `cursor: pointer;` (twbs#21812)
  Fix body padding in Dashboard and Jumbotron examples.
  Move htmllint to npm script.
  Change to markdown (twbs#21815)
  Change header to use markdown (twbs#21809)
  Update grid layout docs (twbs#21806)
  grunt
  Drop Normalize, port relevant parts to Reboot (twbs#21741)
  grunt
  Fix container within navbar on smallest breakpoint (twbs#21722)
  ...

.eslintignore

@@ -0,0 +1,3 @@
+**/*.min.js
+**/vendor/*
+**/dist/*

.gitignore

@@ -38,10 +38,6 @@ Thumbs.db
 .komodotools
 *.komodoproject
 
-# grunt-html-validation
-validation-report.json
-validation-status.json
-
 # SCSS-Lint
 scss-lint-report.xml
 

.hound.yml

@@ -1,20 +1,16 @@
 fail_on_violations: true
 
 scss:
-  config_file: scss/.scss-lint.yml
   enabled: true
-  ignore_file: scss/_normalize.scss
+  config_file: scss/.scss-lint.yml
 
 javascript:
   enabled: false
 
 eslint:
   enabled: true
   config_file: js/.eslintrc.json
-
-jscs:
-  enabled: true
-  config_file: js/.jscsrc
+  ignore_file: .houndignore
 
 ruby:
   enabled: false

.houndignore

@@ -0,0 +1,4 @@
+**/*.min.js
+**/vendor/*
+**/dist/*
+js/tests/*

.travis.yml

@@ -1,43 +1,33 @@
-sudo: required
+sudo: false
 dist: trusty
 language: node_js
 git:
-  depth: 10
+  depth: 3
 node_js:
   - "4"
   - "6"
 before_install:
-  # Remove ./node_modules/.bin from PATH so node-which doesn't replace Unix which and cause RVM to barf. See https://github.com/travis-ci/travis-ci/issues/5092
-  - export PATH=$(python -c 'from sys import argv;from collections import OrderedDict as od;print(":".join(od((p,None) for p in argv[1].split(":") if p.startswith("/")).keys()))' "$PATH")
-  - rvm install 2.2
-  - rvm use 2.2 --fuzzy
-  - npm install -g npm@3
-  - "export TRAVIS_COMMIT_MSG=\"$(git log --format=%B --no-merges -n 1)\""
+  - if [[ `npm -v` != 3* ]]; then npm install -g npm@3; fi
+  - "export TRAVIS_COMMIT_MSG=\"`git log --format=%B --no-merges -n 1`\""
   - echo "$TRAVIS_COMMIT_MSG" | grep '\[skip validator\]'; export TWBS_DO_VALIDATOR=$?; true
   - echo "$TRAVIS_COMMIT_MSG" | grep '\[skip sauce\]'; export TWBS_DO_SAUCE=$?; true
   - if [ "$TRAVIS_REPO_SLUG" = twbs-savage/bootstrap ]; then export TWBS_DO_VALIDATOR=0; fi
 install:
-  - bundle install --deployment --jobs=3
+  - bundle install --deployment --jobs=3 --retry=3
   - cp grunt/npm-shrinkwrap.json ./
-  - npm install -g grunt-cli
   - npm install
+after_success:
+  - if [ "$TWBS_TEST" = sauce-js-unit ]; then grunt/upload-preview.sh; fi
 cache:
   directories:
     - node_modules
     - vendor/bundle
+    - "$HOME/google-cloud-sdk"
 env:
-  global:
-    - NPM_CONFIG_PROGRESS="false"
-    - SAUCE_USERNAME="bootstrap"
-    - secure: "pJkBwnuae9dKU5tEcCqccfS1QQw7/meEcfz63fM7ba7QJNjoA6BaXj08L5Z3Vb5vBmVPwBawxo5Hp0jC0r/Z/O0hGnAmz/Cz09L+cy7dSAZ9x4hvZePSja/UAusaB5ogMoO8l2b773MzgQeSmrLbExr9BWLeqEfjC2hFgdgHLaQ="
-    - secure: "RKWpS+P20b4tG9tawzCMJSmQftoonmC7tJzyGYiHuEM1TcpHALLBcnzKlr/+DiPTfzDJWY4kS8pxfhK4uXOe8OHnhpMNub7LEWtFPePlZIervOJcsOydaQocTKqVVWD6OUubMeQmQ+tZmvmpjoJ1uPPEbFs9ciF7+dv3U5tLUZ0="
-    - secure: "XswSKBY0HJ/aO9VOBeWlvGpqSFF/DsJmNKz7o5RkJMJX340qe44J929uUNwwOwlv9YrgptzC2W6l8bpmZQV+p6IYs99SoSA8CCaUfIJaqeU9x/UiT5vIHgqaNax+vFJwvzHLpF5v/ggFqFEKCd54gCDasePLTztHeC4oL104iaQ="
-  matrix:
-    - TWBS_TEST=core
-    - TWBS_TEST=validate-html
-    - TWBS_TEST=sauce-js-unit
+  - TWBS_TEST=core
+  - TWBS_TEST=validate-html
+  - TWBS_TEST=sauce-js-unit
 matrix:
-  fast_finish: true
   exclude:
     - node_js: "4"
       env: TWBS_TEST=validate-html

CHANGELOG.md

@@ -2,4 +2,4 @@ Bootstrap uses [GitHub's Releases feature](https://github.com/blog/1547-release-
 
 See [the Releases section of our GitHub project](https://github.com/twbs/bootstrap/releases) for changelogs for each release version of Bootstrap.
 
-Release announcement posts on [the official Bootstrap blog](http://blog.getbootstrap.com) contain summaries of the most noteworthy changes made in each release.
+Release announcement posts on [the official Bootstrap blog](https://blog.getbootstrap.com) contain summaries of the most noteworthy changes made in each release.

CONTRIBUTING.md

@@ -32,7 +32,7 @@ restrictions:
   [`Normalize`](https://github.com/necolas/normalize.css) (open them in
   its repository).
 
-* Please **do not** open issues regarding the official themes offered on <http://themes.getbootstrap.com/>.
+* Please **do not** open issues regarding the official themes offered on <https://themes.getbootstrap.com/>.
   Instead, please email any questions or feedback regarding those themes to `themes AT getbootstrap DOT com`.
 
 
@@ -61,7 +61,7 @@ Good bug reports are extremely helpful, so thanks!
 
 Guidelines for bug reports:
 
-0. **Validate and lint your code** &mdash; [validate your HTML](http://html5.validator.nu)
+0. **Validate and lint your code** &mdash; [validate your HTML](https://html5.validator.nu)
    and [lint your HTML](https://github.com/twbs/bootlint) to ensure your
    problem isn't caused by a simple error in your own code.
 
@@ -73,7 +73,7 @@ Guidelines for bug reports:
 
 3. **Isolate the problem** &mdash; ideally create a [reduced test
    case](https://css-tricks.com/reduced-test-cases/) and a live example.
-   [This JS Bin](http://jsbin.com/qusafa/edit?html,output) is a helpful template.
+   [This JS Bin](https://jsbin.com/lolome/edit?html,output) is a helpful template.
 
 
 A good bug report shouldn't leave others needing to chase you up for more
@@ -104,7 +104,7 @@ Example:
 ### Reporting upstream browser bugs
 
 Sometimes bugs reported to us are actually caused by bugs in the browser(s) themselves, not bugs in Bootstrap per se.
-When feasible, we aim to report such upstream bugs to the relevant browser vendor(s), and then list them on our [Wall of Browser Bugs](http://getbootstrap.com/browser-bugs/) and [document them in MDN](https://developer.mozilla.org/en-US/docs/Web).
+When feasible, we aim to report such upstream bugs to the relevant browser vendor(s), and then list them on our [Wall of Browser Bugs](https://getbootstrap.com/browser-bugs/) and [document them in MDN](https://developer.mozilla.org/en-US/docs/Web).
 
 | Vendor(s)     | Browser(s)                   | Rendering engine | Bug reporting website(s)                                                              | Notes                                                    |
 | ------------- | ---------------------------- | ---------------- | ------------------------------------------------------------------------------------- | -------------------------------------------------------- |
@@ -232,7 +232,7 @@ includes code changes) and under the terms of the
 
 [Adhere to the Code Guide.](http://codeguide.co/#css)
 
-- When feasible, default color palettes should comply with [WCAG color contrast guidelines](http://www.w3.org/TR/WCAG20/#visual-audio-contrast).
+- When feasible, default color palettes should comply with [WCAG color contrast guidelines](https://www.w3.org/TR/WCAG20/#visual-audio-contrast).
 - Except in rare cases, don't remove default `:focus` styles (via e.g. `outline: none;`) without providing alternative styles. See [this A11Y Project post](http://a11yproject.com/posts/never-remove-css-outlines/) for more details.
 
 ### JS
@@ -241,7 +241,7 @@ includes code changes) and under the terms of the
 - 2 spaces (no tabs)
 - strict mode
 - "Attractive"
-- Don't use [jQuery event alias convenience methods](https://github.com/jquery/jquery/blob/master/src/event/alias.js) (such as `$().focus()`). Instead, use [`$().trigger(eventType, ...)`](http://api.jquery.com/trigger/) or [`$().on(eventType, ...)`](http://api.jquery.com/on/), depending on whether you're firing an event or listening for an event. (For example, `$().trigger('focus')` or `$().on('focus', function (event) { /* handle focus event */ })`) We do this to be compatible with custom builds of jQuery where the event aliases module has been excluded.
+- Don't use [jQuery event alias convenience methods](https://github.com/jquery/jquery/blob/master/src/event/alias.js) (such as `$().focus()`). Instead, use [`$().trigger(eventType, ...)`](https://api.jquery.com/trigger/) or [`$().on(eventType, ...)`](https://api.jquery.com/on/), depending on whether you're firing an event or listening for an event. (For example, `$().trigger('focus')` or `$().on('focus', function (event) { /* handle focus event */ })`) We do this to be compatible with custom builds of jQuery where the event aliases module has been excluded.
 
 ### Checking coding style
 

Gemfile

@@ -1,8 +1,8 @@
 source 'https://rubygems.org'
 
 group :development, :test do
-  gem 'jekyll', '~> 3.1.2'
-  gem 'jekyll-redirect-from', '~> 0.10.0'
-  gem 'jekyll-sitemap', '~> 0.10.0'
-  gem 'scss_lint', '~> 0.47.1'
+  gem 'jekyll', '~> 3.3.1'
+  gem 'jekyll-redirect-from', '~> 0.12.0'
+  gem 'jekyll-sitemap', '~> 0.12.0'
+  gem 'scss_lint', '~> 0.51.0'
 end

Gemfile.lock

@@ -1,51 +1,58 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    colorator (0.1)
-    ffi (1.9.10)
-    ffi (1.9.10-x64-mingw32)
-    jekyll (3.1.6)
-      colorator (~> 0.1)
+    addressable (2.5.0)
+      public_suffix (~> 2.0, >= 2.0.2)
+    colorator (1.1.0)
+    ffi (1.9.14)
+    forwardable-extended (2.6.0)
+    jekyll (3.3.1)
+      addressable (~> 2.4)
+      colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
       jekyll-watch (~> 1.1)
       kramdown (~> 1.3)
       liquid (~> 3.0)
       mercenary (~> 0.3.3)
+      pathutil (~> 0.9)
       rouge (~> 1.7)
       safe_yaml (~> 1.0)
-    jekyll-redirect-from (0.10.0)
-      jekyll (>= 2.0)
-    jekyll-sass-converter (1.4.0)
+    jekyll-redirect-from (0.12.0)
+      jekyll (~> 3.3)
+    jekyll-sass-converter (1.5.0)
       sass (~> 3.4)
-    jekyll-sitemap (0.10.0)
-    jekyll-watch (1.4.0)
+    jekyll-sitemap (0.12.0)
+      jekyll (~> 3.3)
+    jekyll-watch (1.5.0)
       listen (~> 3.0, < 3.1)
-    kramdown (1.11.1)
+    kramdown (1.13.1)
     liquid (3.0.6)
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
     mercenary (0.3.6)
-    rake (10.5.0)
-    rb-fsevent (0.9.7)
+    pathutil (0.14.0)
+      forwardable-extended (~> 2.6)
+    public_suffix (2.0.5)
+    rake (12.0.0)
+    rb-fsevent (0.9.8)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
-    rouge (1.10.1)
+    rouge (1.11.1)
     safe_yaml (1.0.4)
-    sass (3.4.22)
-    scss_lint (0.47.1)
-      rake (>= 0.9, < 11)
-      sass (~> 3.4.15)
+    sass (3.4.23)
+    scss_lint (0.51.0)
+      rake (>= 0.9, < 13)
+      sass (~> 3.4.20)
 
 PLATFORMS
   ruby
-  x64-mingw32
 
 DEPENDENCIES
-  jekyll (~> 3.1.2)
-  jekyll-redirect-from (~> 0.10.0)
-  jekyll-sitemap (~> 0.10.0)
-  scss_lint (~> 0.47.1)
+  jekyll (~> 3.3.1)
+  jekyll-redirect-from (~> 0.12.0)
+  jekyll-sitemap (~> 0.12.0)
+  scss_lint (~> 0.51.0)
 
 BUNDLED WITH
-   1.12.5
+   1.13.6