Better support for RTL languages
CSS changes to better support RTL languages. Most notable is the positioning of the arrow on the left side of the select2 for RTL
More RTL style fixes, now for the multiple select
Getting a few more pixels perfect in the RTL mode for multiple selects
Merge pull request #2361 from rjbijl/rtl

Better support for RTL languages
updated translation template to match master
updated russian translation

now matches the latest template, see #2435
Merge pull request #2435 from asapach/patch-1

updated translation template to match master
Merge pull request #2436 from asapach/patch-2

updated russian translation to match template
Fix error: Cannot read property 'top' of undefined

Lines [1499](https://github.com/ivaynberg/select2/blob/d487fc58a889b471f7d587cc61baeca1d68de633/select2.js#L1499) and [1509](https://github.com/ivaynberg/select2/blob/d487fc58a889b471f7d587cc61baeca1d68de633/select2.js#L1509) make a call to `child.offset().top`. I don't know what's causing `child.offset()` to return undefined, but it is and it's breaking Select2 so that I can't select the last item in the list (this error occurs when I try hovering over or clicking on the last item in a list).

I can try and create a reduced case, but this fix is 100% backward compatibe, passes all the tests you have for the project and has a 0% chance of breaking anyone's working code. With this patch, my dropdown works just fine. At worst, this does *nothing* for people, at best, it fixes a rare edge case. Like my edge case. And I'm a pretty important person to me.
Small `formatMatches` change for single results

This changes `formatMatches` to notify the user that they can
select the single result.  This is a more clear result compared to
the previous one.

This closes the following issue: https://github.com/ivaynberg/select2/issues/2329
Normalized `select2-selecting` event

This normalizes the `select2-selecting` event so the object is
returned as `choice` in the event data.  While the documentation
points to the name being `object`, all other events return the
affected data object as `choice`.

This closes the following issue: https://github.com/ivaynberg/select2/issues/2340
Detect classes separated by multiple spaces

This detects classes separated by multiple spaces and will trim
extra spaces surrounding the class attribute.

This closes the following issue: https://github.com/ivaynberg/select2/issues/2358
Merge pull request #2444 from surgeforward/undefined-top

Fix error: Cannot read property 'top' of undefined
modified version identifiers in descriptors for release 3.5.0
Update select2.js

fixed destroy
Fix there/their typo
Merge pull request #2466 from tjperovich/patch-1

Fix there/their typo
Merge pull request #2465 from rvitaliy/patch-1

fixed destroy
Fixes #2434 Tagging support allows creation of tags that are only whitespace
Merge pull request #2481 from sbilstein/master

Fixes #2434 Prevents whitespace only tags from being created