Update Element.Dimensions.js

Fix "Unspecified Error" in Internet Explorer when calling getSize() on a node that isn't in the DOM.

cf. http://bugs.jquery.com/ticket/4996 , https://github.com/jquery/jquery/commit/cf672a2e7a886cac5ae62f6772c6b4b43b19a2fc , and https://github.com/jquery/jquery/commit/ec7ea3fba15379ebe8ddff5f6c99ec3faf8d6d17
Merge pull request #2648 from barryvan/patch-2

Update Element.Dimensions.js
Remove unnecessary semicolons
Add missing semicolon

Semicolon missing following anonymous function assignment
Merge pull request #2649 from barryvan/patch-4

Add missing semicolon
Merge pull request #2650 from barryvan/patch-3

Remove unnecessary semicolons
fix IE version detection in old IE
Merge pull request #2653 from SergioCrisostomo/ie-version-fix

fix IE version detection in old IE
Protect 'contains' method in Array prototype

Firefox 35 includes support for the 'contains' method of ECMA 7. This breaks MooTools because it is not a protected method. Unfortunately a lot of sites are going to be broken by this, I've already tested a few including my own and jsfiddle. The specific error I see is that the Elements class does not implement the 'contains' method from the Array prototype. I've added this small change to my site and it fixes the problem.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/contains
Merge pull request #2654 from mattcoz/patch-1

Protect 'contains' method in Array prototype
Use a stable nodejs version to run the tests.
Merge pull request #2655 from arian/travis-use-stable-node-version

Use a stable nodejs version to run the tests.
Travis Only run the phantomjs browser for pull requests, echo 0 for others
The browser support version is current-1.

So safari 5 doesn't need to be tested anymore.
Merge pull request #2657 from arian/travis-remove-old-safari-versions

The browser support version is current-1.
Merge pull request #2656 from arian/travis-only-run-phantom-for-pull-requests

Travis Only run the phantomjs browser for pull requests, echo 0 for others