Increase read timeout and close response stream in DataFetcher.
We had some problems with the short read timeout (previously 1 second),
on the getSeeds call in particular, so just increasing the timeout value.
Also, noticed the reponse stream was never directly closed, so now cleaning
that up.
Merge pull request #225 from jasobrown/1.1

Increase read timeout and close response stream in DataFetcher.
reviewed by @sloke and @timiblossom