Fix typo: hel -> help
scraper_q: Add gzip support.

Helpful because Amazon S3 doesn't support switching between gzipped and
non-gzipped content so often times resources are uploaded directly
gzipped with gzipped headers. Because all modern browsers support gzip,
S3 always serves gzip and it's not generally a problem. Urllib, however,
doesn't support gzip so gzipped resource currently fail to decode when
scraped.