Apply @color argument to striped gradient

The @color argument is currently not being used for the striped gradient.
Remove progress bar striped @color parameters; use default transparent white.

* If the @color parameter is not removed, the stripes are the same color as the element background color. In this case, the stripes do not appear.
code.less: also set default monospace font for `<kbd>` and `<samp>`
removed reference to button color and gradient

Changed the wording to reflect the default button's new look since it's no longer grey and doesn't have a gradient. I'd say this new wording isn't ideal and needs something a bit more, well, descriptive.
removed extraneous space
remove .btn-group

The example doesn't use .btn-group and adding the class causes "bad things to happen," as the saying goes.

http://jsfiddle.net/josephtate/g6AWF
Fixing carousel control positioning

The left control should be positioned from the left, while the right
control should be positioning from the right. Positioning both from the
left results in the right carousel control being incorrectly positioned
(most noticeable with a larger than normal font size).
Add missing methods (rotateX/Y, perspective(-origin) and transform-origin)

Added missing mixins:
rotateX
rotateY
perspective
perspective-origin
transform-origin
Don't explicitly reference global jQuery

Removes `window.jQuery` in favor of `jQuery`, fixes #10038
turn some buttons into <button> elements where possible
Merge branch 'master' of github.com:twbs/bootstrap
forgot a pair of buttons
Add role="button" to <a> buttons

These should really be <button> elements, but until that gets squared away, this will suffice.
Add even more  role="button" attributes

Missed the <a class="btw" in my regex search
Merge pull request #9996 from jodytate/master

changed description of default button
grunt dist on glyphicons width change
Deprecate container-{device} vars for container-{size} classes; updates customizer and grid to do the same
Merge pull request #10112 from kevinSuttle/button-roles

Add role="button" to <a> buttons
fixes #9887: documents show and hide classes
Merge branch 'master' of github.com:twbs/bootstrap