Open the quickfix window even when there are no errors

Hi, thanks for the plugin.

When in quickfix mode, during the run of the test status line displays ":call <SNR>45_Run(2)", and if tests has no errors this message stays.

With this change, during the run, the status line will display the run command (ie. "Running... spring rake test test/controllers/topic_controller.rb") and when finished it'll open quickfix window even when no errors found, just to better indicate the outcome.