Gruntfile.js: Simplify copy task.
Merge pull request #14488 from vsn4ik/gruntfile_copy_task

Gruntfile.js: Simplify copy task.
Update grunt-jscs.
Set git clone depth to 10 for Travis to make it faster
Fixes #14443: Only transition what needs transitioning for thumbnails to avoid Safari/Chrome render bug
document that fieldset[disabled] is somewhat broken in IE11; fixes #14509
Merge pull request #14516 from twbs/fix-14509

Document that fieldset[disabled] is somewhat broken in IE11
Merge pull request #14497 from BBosman/clone-depth

Set git clone depth to 10 for Travis to make it faster
Add Wall of Browser bugs entry for #793

Also, link to the Mozilla bug in the relevant callout.
Merge pull request #14527 from twbs/firefox-disabled-bug

Add Wall of Browser bugs entry for #793
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/renebentes/bootstrap

Conflicts:
	dist/css/bootstrap.css.map
	dist/css/bootstrap.min.css