ivaynberg/select2 — pull request #1117 by rk (2013-03-28 16:19:19+00:00)
Title: [#1116] Using $.trim in placeholder logic

The biggest change lies with `setPlaceholder()` and altering a significant chunk of logic. But by this time `getPlaceholder()` should have determined if we ought to show a placeholder at all. This logic should just determine if the value of the select is `""` or `0`.