Made demo work  (OSX)

Hi guys,

I couldn't get the demo working until I changed this path in the testsuite.js file.

It gave me this error:
![2013-12-03_1621](https://f.cloud.github.com/assets/583101/1664917/92a2deae-5c2e-11e3-85fa-69e7d613c6a5.png)