Installation doesn't save email address (Bug #1300741)

This is a regression that has crept in during v1.8
The installation doesn't update the admin's email address from the
dummy one.

Change-Id: If2b74121e6799c3f2c3745802c2aa0e856b2fd69
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>
Merge "Installation doesn't save email address (Bug #1300741)"