http://semver.org

(cherry picked from commit 48d71d0c)

(remember to `npm install`)

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

Fixes #13550. .data should not miss attr() set data-* with hyphenated property names. Closes gh-1189

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

 responseXXX fields are set on the jqXHR. Close gh-1164.

(Cherry-picked from 69b3d5ce)

What's out:
* 6 KB
* attribute not equal selector
* positional selectors (:first; :eq(n); :odd; etc.)
* type selectors (:input; :checkbox; :button; etc.)
* state-based selectors (:animated; :visible; :hidden; etc.)
* :has(selector)
* custom selectors
* leading combinators (e.g., $collection.find("> *"))
* reliable functionality on XML fragments
* requiring all parts of a selector to match elements under context (e.g., $div.find("div > *") now matches children of $div)
* matching against non-elements
* reliable sorting of disconnected nodes

Android<4 (ancient WebKit) doesn't have full ES5 support.

If the event type is an empty string we end up hanging in .off() which makes for
mighty hard debugging. Instead treat it as a no-op. Docs seem clear this is not
allowed.

Follows-up 22e28b01.