A couple changes I had to make to get the Pixlee object to work in my project.

Corrected the example in the Readme for creating a new pixlee object. 

The json_encode JSON_UNESCAPED_SLASHES option doesn't exist in php < 5.4 so I added a hacky work around for creating the escaped string.  

I now cast the error message as an array so the implode returns because it was returning an empty value if $theResult->message was not an array.