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.
Resolves #10923

Rebased from #10930
Fixes issue #11098 -- Button documentation.
Fixes issue #11122 -- navbar-fixed-bottom border

Enable border-top in .navbar-fixed-bottom
Merge pull request #11141 from vincentchan/master

Update translation sites URL
fix #11144
FIx invalid element selector

`kbd` (keyboard) is right, not `kdb`. :P
Merge pull request #11150 from ZDroid/patch-1

FIx invalid element selector
add explicit copyright header to docs CSS & JS files; fixes #11112
even shorter banner; remove space between slash and period
Merge branch 'fix-11112'
copy change, add to buttons anchor section
Merge branch 'master' into navbar-button-docs