Don't explicitly reference global jQuery

Removes `window.jQuery` in favor of `jQuery`, fixes #10038
Bower: Ignore development and documentation files on bower.json. Fix #10313.

I've kept only the files I consider relevant to bower installation:

- Files in dist directory;
- Files in js directory;
- Files in less directory;
- bower.json file;
- README.md file;
- LICENSE file.
Dropdown in panel header does not inherit its colors

Fix for issue #10627
add responsive CSS to hyperlinked images when thumbnail caption markup is used

When thumbnail caption markup is used in combination with a hyperlinked image, the image is not responsive. (non-hyperlinked images are fine, like the example in the docs) Adding a selector to apply responsiveness to hyperlinked images when thumbnail captions are used.
Removed the unnecessary override and the !important from .wrap

In the sticky footer example there were some weird stuff..
Same fix for the navbar example of sticky footer
bower.json: Modify `assets` directory on ignore to `docs-assets`
remove comma separating the color and the color-stop in -webkit-linear-gradient in the #gradient .vertical mixin.
Fixes issue #11098 -- Button documentation.
Fixes issue #11122 -- navbar-fixed-bottom border

Enable border-top in .navbar-fixed-bottom
(Not HTML) tag way is much better
Merge pull request #11166 from ZDroid/tag_way

(Not HTML) tag way is much better
added bower_components to .gitignore
Continue tag way implementation
Merge pull request #11183 from ZDroid/patch-1

Continue tag way implementation
Fixes #10903 and #10457: IE8-9 don't support events on elements without background-color, so we have to hack it
run grunt dist
Merge branch 'master' of github.com:twbs/bootstrap
Merge branch 'master' into carousel_indicators_ie

Conflicts:
	dist/css/bootstrap.min.css
mo grunt