Incorrectly parses CSS "propertyName" on qtip2, resulting in failure to detect excludeProperties "behavior" attribute

[bs-thomas]

I believe there are probably more libraries having this problem, but it's not parsing the CSS correct.
(1) dist/jquery.qtip.css
(2) dist/jquery.qtip.min.css

The two above files were unable to avoid the "behavior" attribute. Putting a console.log on css-url-rewriter.js:46 for the variable "propertyName" tells me that it has not parsed the CSS correctly.

It returns "http" as "propertyName" when using (1)
It returns "{cursor" as "propertyName" when using (2)

I'm using version 0.1.3

Thanks!

[bs-thomas]

I revised the regex patterns a bit to make them more robust to cover a larger variety of use-cases. Hopefully if it's fine you can merge in. Thanks!