Update Docs/Request/Request.md

Indicate that iOS 6 also caches AJAX requests. 

http://stackoverflow.com/questions/12506897/ios6-safari-caching-ajax-results/12521180#12521180
Fixes #2402 - String.prototype.contains is now implemented according to the new ES6 standard

- Moved the old String.prototype.contains implementation in 1.4compat
- Using good old indexOf at other places
Add !ES6 blocs for String:contains
Update documentation for String:contains
Merge branch 'standard-contains' fixes #2402
Merge pull request #2429 from barryvan/patch-1

Update Docs/Request/Request.md
Remove some unicode character from the specs
Fixes #2407 - add capture info to removeEvent
Adding test for previous fix for removing delegated focus events.
Fixes #2407 - Merge branch 'fix-2407'
Don't wrap a method if there are no calls to .parent and if the method is not protected.
Removing 1.2/1.3compat
Remove some super unnecessary stuff that I don't need in this fork.
CommonJS for the Base Modules of Core. Expects a single file (build through Packager, then use require). Probably doesn't work for you.
Removing some more things I don't need.
Module support for Element.Delegation
Cookie CommonJS module
Removing appendHTML
simplify and optimize document.id
Remove more unnecessary MooTools features.