[fix bug 907319] Tooltips on event times no longer appear
[fix Bug 908143] Error on events period filtering through URL
Merge pull request #467 from alexgibson/bug-907319-tooltips-on-event-times-no-longer-appear

[fix bug 907319] Tooltips on event times no longer appear
Merge pull request #468 from alexgibson/bug-908143-error-events-period-filtering-through-url

[fix bug 908143] Error on events period filtering through URL