Update to resolve issue #1434

Alternative fix as suggested here:

https://github.com/borisyankov/DefinitelyTyped/pull/1435
Merge pull request #1442 from brettpostin/patch-1

Update to resolve issue #1434
jQuery: The interface used to specify easing functions add
Merge pull request #1454 from michalkutil/master

jQuery: The interface used to specify easing functions add