Updated regular expression support

Merge pull request #2 from Piterden/patch-1

Updated regex

Added support for Laravel 4.2

v1.0.3

Dumped up the composer.json to work with Laravel 4.2 (illuminate/supp…

v1.0.2

A slightly improved regex to prevent quoted values being picked up.

v1.0.1

Changed the logic to use a quoted variable name.