Group member receives page access notification for page they created

Bug #1377544

Needed to fetch the creation of group page user and get them to be
ignored from the activity notification.

Change-Id: Iee5e24592182a3e99e2e5300b2ca8f825f5a8cdb
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>
Do not do viewaccess notification for group homepage (Bug #1377543)

Change-Id: I8cee490dc41c449bd878e7675dd2b6f44e02c0b7
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>