NewWithDiskv function for creating a cache that uses an existing Diskv
Update README.md
Return errors from transport.RoundTrip
Factor out and export Date function (parses and returns the value of the Date header)
Merge pull request #11 from sourcegraph/NewWithDiskv

NewWithDiskv function for creating a cache that uses an existing Diskv
Merge pull request #12 from sourcegraph/handle-Roundtrip-errors

Return errors from transport.RoundTrip
Merge pull request #13 from sourcegraph/factor-out-date-func

Factor out and export Date function (parses and returns the value of the Date header)