[Fix bug 997275] Add dynamic groups to PermissionMixin.
PR update.
Merge pull request #755 from johngian/fix-metrics-permissions

[Fix bug 997275] Add dynamic groups to PermissionMixin.
[fix bug 1011181] Notify event creators that it's time to input event metrics.
Merge pull request #764 from akatsoulas/1011181

[fix bug 1011181] Notify event creators that it's time to input event metrics.