fix scrollSpy instructions for JS call

Don't really know if this is correct, but at least it only worked for me that way...
Update javascript.html
Merge pull request #9120 from FLOKER/patch-2

fix scrollSpy instructions for JS call
little better spacing between major sections in le docs for jump to nav
Merge branch '3.0.0-wip' of github.com:twbs/bootstrap into 3.0.0-wip
disable BrowserStack for folks w/o their own key who are making PRs
Merge pull request #9183 from twbs/fix-other-peoples-travis-builds

disable BrowserStack for folks w/o their own key who are making PRs
fixes #8935: add gutter width param to grid mixins
fixes #8959: only negative indent rows within .container (prevents horizontal scroll on full-width pages)
Improve accessibility (Section 508, WCAG)

This PR significantly improves Bootstrap's accessibility for users of assistive technology, such as screen readers. Some of the these changes add additional markup to the source examples, but we believe that the sacrifice in readability is worth achieving more widespread usage of accessibility best-practices.

What was done
- Added lots of [WAI-ARIA attributes](http://www.w3.org/WAI/intro/aria)
- Added `.sr-only` helper class, that is only readable by screen readers (and invisible for all other users). This lets us - make progress bars and paginations accessible to screen reading users.
- Advised users to always use label elements. For inline forms, they can hide them with `.sr-only`
- Added 'Skip navigation' link
- Added "Accessibility" section to getting-started.html.

What *wasn't* done
- Contrast issues (twbs#3572)
- Tooltips (twbs#8469)
- Documentation re: usage of icons, since they now live in a separate repo

Major props to all that contributed: @bensheldon, @jasonlally, @criscristina, and @louh. Feel free to chime in, guys, if I've left anything out.
copy changes
property order
Fixed link to JavaScript buttons plugin
Fixed #9196 - malformed HTML in doc

Stray <h3> was being closed by an </h2>. Updated to valid HTML. Fixes #9196
Merge pull request #9191 from ggam/patch-10

Fixed link to JavaScript buttons plugin
Merge pull request #9198 from bwhitty/3.0.0-wip

Fixed #9196 - malformed HTML in doc
Update to use @list-group-border-radius
Added panel-variant mixin
Updated panels.less to use variant-panel mixin
apparently PRs against twbs/bootstrap have the same Travis slug