[fix bug 904608] Add og meta tags to events detail pages
[Bug 907231] Unable to share event on Facebook
Merge pull request #462 from alexgibson/bug-907231-unable-to-share-event-on-facebook

[Bug 907231] Unable to share event on Facebook
Merge pull request #461 from alexgibson/bug-904608-add-og-meta-tags-to-events-detail-pages

[fix bug 904608] Add og meta tags to events detail pages