fixed gunzip error

It seems here the chunks need to be unzipped as they come in and not at the end. the commited code seems to fix the errors. Refer to http://stackoverflow.com/questions/10207762/how-to-use-request-or-http-module-to-read-gzip-page-into-a-string for my solution @rcrichton please review
Can you please change these back to the defaults. I think the changed got committed by mistake.