Fixes #15121
Closes gh-1589

Fixes #15118
Closes gh-1588

Fixes #15126

(Cherry-picked from 3b9057a1)

Ref jquery/sizzle@20fbadb0870bd30e0e66c68891f121c0450374c4
(Cherry-picked from efc4f8d7)

Fixes #14915

(cherry-picked from 213b9604f3da654e4281eeea56fcb169f88ffd19)

Fixes #14796
Closes gh-1572

(cherry-picked from da148f15)

(cherry-picked from 69d4a48f)

Closes gh-1570

The release script didn't go perfectly.

Fixes #14894
(cherry picked from commit b8133e28)

Conflicts:
	src/data.js
	test/unit/data.js

Take "olddisplay" value into the account

Fixes #14824
Closes gh-1566
Ref 73fe1729

(cherry-picked from c34dbf5a)
Conflicts:
	src/effects.js

* Use tabs instead of spaces in jscs config

* Always use spaces in package.json (really hope this is temporary)

(cherry-picked from bbace100)

(cherry picked from commit 108428bcabb7027852ecd656b98f110a444039d0)

(cherry-picked from 1514dca5)

Fixes #14901
Fixes #14793
(cherry picked from commit 90b43de2)

According to http://www.w3.org/TR/CSS2/page.html#propdef-orphans, widows
and orphans can take only positive integer values. Together with a Chrome 34
regression this caused the test to fail.

(cherry-picked from def4841c)

Fixes #15016
Closes gh-1563

Fixes #14979
Closes gh-1560
(cherry picked from commit 1ca84214)

Conflicts:
	AUTHORS.txt

Ref jquery/jquery-release#61
Closes gh-1562

(cherry-picked from d0131da7)

* Update "grunt-jscs-checker" package

* Use ".jscsrc" file instead of old ".jscs.json"

* Use jquery preset instead of explicitly defining all the jscs rules

(Cherry-picked from b7283d73 commit)

Since global variable for callback always would be equal to undefined value
it better to check for boolean instead

Also fix issues found by jscs

Conflicts:
	test/data/testrunner.js

Fixes #14818

Conflicts:
	test/data/testrunner.js

Conflicts:
	test/data/testrunner.js