make the runner testable

Signed-off-by: Joshua Rubin <jrubin@zvelo.com>
update Godeps

Signed-off-by: Joshua Rubin <jrubin@zvelo.com>
add much better logging with configurable log levels. add no-sync option.

Signed-off-by: Joshua Rubin <jrubin@zvelo.com>
update the README

Signed-off-by: Joshua Rubin <jrubin@zvelo.com>