jquery/jquery — pull request #1083 by rwldrn (2012-12-17 22:31:56+00:00)
Title: 2.0: Reduce isPlainObject

```bash
Sizes - compared to master @ 5c8984efc4a8c0472bcdc514e744b063e8f98a61
265248 (-462) dist/jquery.js
92610 (-26) dist/jquery.min.js
32792 (-15) dist/jquery.min.js.gz
```

Signed-off-by: Rick Waldron