Set a default timeout of 20s for HTTP connections

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>
Move part of report_all_runs() into report_runs()

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>
Merge pull request #131 from ceph/wip-store-results

Reporting tweakage