Do not set the active status until after the ownership of or management access to has been confirmed.

Summary:
When the domain is confirmed, we also know it to exist in DNS, even if verify() fails.

Only when the domain is confirmed and verified, do we set the active status

Reviewers: #hkccp_developers, machniak

Reviewed By: #hkccp_developers, machniak

Subscribers: machniak, #hkccp_developers

Differential Revision: https://git.kolab.org/D1708