Don't log common connection problems by default.
Skips failed-to-download tests
Merge pull request #3293 from brendandahl/less-log

Don't log common connection problems by default.
Wrap driver code in closure.
Merge pull request #3311 from brendandahl/wrap-driver

Wrap driver code in closure.
Merge pull request #3310 from yurydelendik/ignore-bad-downloads

Skips failed-to-download tests