Drops response wkt

This pull request removes part of what was added on #38, specifically, avoids the creation of response.WKT in the ```deconstruct``` method. I didn't know at the time that, in order to get a WKT string, one just needs to call ```.toString()``` on the Wicket object.

As the response.WKT is not needed and it creates extra verbosity and does extra calculation, it's better to remove it altogether.

With this, the ```pathonly``` parameter of the  ```deconstruct``` method is no longed needed. I fixed the call where it was due. I added the multiFlag parameter to the docblock comments.