http://semver.org/

(remember to `npm install`)

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

(cherry picked from commit b55bfb14)

Follows-up 22e28b01.
(cherry picked from commit 31478b90)

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.

(cherry picked from commit 59f5adb6)

(cherry picked from commit 6a0ee2d9)

Squashed commit of the following:

commit 5935a362c75ecef04d5ec9775cbcaf2165921e8d
Author: Andrew Plummer <plummer.andrew@gmail.com>
Date:   Fri Feb 1 02:40:42 2013 +0900

    Using "hasOwnProperty" to check for direct properties "type" and
    "namespace" on events before triggering.