[fix bug 890867] Notify NewRelic on push.
[fix bug 897771] Display mail event attendees modal in authenticated users only.
Merge pull request #442 from glogiotatidis/897771

[fix bug 897771] Display mail event attendees modal in authenticated users only.
Merge pull request #431 from glogiotatidis/newrelicnotification

[fix bug 890867] Notify NewRelic on push.