Add popular items, show popular items when click.
Merge remote-tracking branch 'ivaynberg/master'
fix two bug in select2

focus function trigger focus event in multi select2, make chrome dead.
the lastterm not set if term length less than the minimumInputLength
when use ajax.
Merge pull request #1056 from dlx1986/bugfix

fix a bug when use multi
Update README.md
Update README.md
Update README.md
Update README.md
Create Ukrainian translation file
Merge pull request #1060 from bigmihail/patch-1

Ukrainian translation file
Merge branch 'master' into bugfix

Conflicts:
	select2.js
revert changes