Updated to latest version of Price Table Widget.

* Fixed URL of price table admin enqueue
* Replaced function that's only available in PHP 5.3+.
* Fixed issue with lost data.

git-svn-id: https://plugins.svn.wordpress.org/so-price-table-widget/trunk@847150 b8457f37-d9ea-0310-8a92-e5e31aec5664