Update jquery.ime library

upstream: http://github.com/wikimedia/jquery.ime

changes:
* Support for contenteditable, like the VisualEditor surfaces. This
  support is very minimal now. Because of VE bugs on IME support, many
  things are broken. But one-one keyboard mappings should work with less
  issues. The UI of jquery.ime is not integrated with VE toolbar
* More input methods
	- IPA-X-SAMPA by Amir
	- Armenian keymaps by  Aleksey Chalabyan
	- Kurdish keymaps by Ghybu
	- Кыргыз keymap by Amir
	- Central Kurdish keyboards by Çalak
* A lot of input method bug fixes multiple contributors
* Minor UX fixes

Introduces Rangy library.
A module named rangy is defined in VisualEditor extension with more features of rangy.
Here we need only the core library. This module is loaded dynamically from
client when rangy is undefined. If VE is present rangy will be defined, the module
defined in VE will be used. ie, This get loaded only when VE is not present and
user trying to type in a contenteditable.

Bug: 49569
Bug: 50849
Bug: 50220

Change-Id: Iadad5a4e5972fbd1359847526d28e9dbbe00a7c4