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Removed background color from #gradient mixins to support transparent gradients
fix scrollSpy instructions for JS call

Don't really know if this is correct, but at least it only worked for me that way...
Scope tablet classes to tablets range only

Fixes #9128
Update javascript.html
Merge pull request #9157 from alienlebarge/3.0.0-wip

Add links to Recess, Uglify-js & PhantomJS in README
Merge branch '3.0.0-wip' of github.com:twbs/bootstrap into 3.0.0-wip
Fixes #9150: Hide popover titles in IE8

Properly hides popover titles in IE8 because apparently it doesn't
accept the `:empty` selector. /cc @fat @cvrebert
Fixes #9145: Fix tooltip opacity

Update tooltips to not use RGBa colors so IE8 can have tooltips, too
(means we're now using `opacity`).
fixes #9140: use correct var in tables
Fix #9132, but in the correct branch

People, don't PR against `gh-pages` please!
Integrate testing with browserstack
only run browserstack tests in Travis
Merge pull request #9165 from twbs/browserstack

Browserstack testing integration (rebased, squashed, tweaked)
update phantomjs link
Fix spacing after '=' 

Just added a space after a function definition to tidy up the code.
Merge pull request #9169 from bwhitty/3.0.0-wip

Fix spacing after '=' in popover.js
grunt dist on spacing change
fixes #9162: add mention of Windows Phone 8 and IE10 bugs with responsive foo
Merge pull request #8731 from nrw/patch-1

Format multiple badges in list-group-item