People can change comaintainer ownership to suspended users if they
want to.

Suspended users cannot login, so there is no breach of security
here. It does make sense to allow ownership to be changed, imo.

Closes #339

Signed-off-by: Kevin Morris <kevr@0cost.org>

Signed-off-by: Kevin Morris <kevr@0cost.org>

Instead of allowing an exception to propogate through the framework
routes, catch it and log out an error about notifications not being
sent.
Signed-off-by: Kevin Morris <kevr@0cost.org>

Signed-off-by: Kevin Morris <kevr@0cost.org>

- Removed notify sharness test
Signed-off-by: Kevin Morris <kevr@0cost.org>