Fix pass/fail display on exit.

Signed-off-by: Warren Usui <warren.usui@inktank.com>
Implement email task.

Email.py was added so that the emailto attribute could be passed,
and to prevent 'module object has no attribute: email' errors from
happening.  Run.py actual performs the email operation and calls
suite.email_results to do the actual send mail operation.  The
information passed right now is the summary and config information.

Signed-off-by: Warren Usui <warren.usui@inktank.com>