Update select2.js

bugfix: .select2("data", null) for remote datasource causes an error "ReferenceError: e is not defined"
Update select2_locale_ar.js

Translate in the of 1 or 2 or more than 2 because not the same in Arabic.
Fix the focus when list is closed on the mouse click event
Enable function formatResultCssClass.
Compatibility with jQuery 1.10

removeAttr("disabled') is no longer correct with the most recent version
of jQuery. Should use prop("disabled", false) instead.
Fix selection first element from "postprocessResults" - exclude selected elements from highlightable elements
Fix for #1518. Update to select2.js to trigger properly named event.

By the documentation the event that should be fired is "select2-removed" however the event that actually gets fired is called "removed"
Update to unselect method to support "select2-removing" triggers.

The goal here is send off a triggered event to a subscriber that an
element is going to be removed. It hasn't removed yet but would be
after the event fires. I have also added logic to determine if a
subscriber has prevented default. This will prove useful in the future
if a subscriber needs to extend the functionality for other usages.
#1776 and #1722 dropdown position issue
Merge pull request #1777 from yonjah/master

#1776 and #1722 dropdown position issue
Merge pull request #1772 from KyKyPy3/master

Fix selection first element from "postprocessResults"
Merge pull request #1639 from francoispluchino/fix-close-focus

Fix the focus when list is closed on the mouse click event
fixes #1557 ...again...
Merge pull request #1774 from avelis/master

Fix for #1518. Update to select2.js to trigger properly named event.
small cleanup in width regex matching. #1557
Remove unused var declarations
Merge pull request #1789 from STAH/unused-vars

Remove unused var declarations
Don't rely on :selected, makes Select2 compatible with jQuery builds without Sizzle.
Merge pull request #1795 from arendjr/master

Don't rely on :selected, makes Select2 compatible with jQuery builds without Sizzle
Fixing reference to undefined this triggering change on multiselect