Switch to redirects in ReportGroupController
Switch to redirects in ReportGroupController

The previous approach of just finding the correct viewmodel did not work
because the parameters in the URL are used elsewhere in the view as well
so we got only a small portion of the data correctly shown and rest was
missing or very misleading (like product name that does not really exist
for the release version)

Related to #19

leonidas/qa-reports,leonidas/qa-reports,leonidas/qa-reports