OOPS recorded ssh'ing into bazaar.launchpad.net

[Diogo Matsubara]

Steps to reproduce:
1. Run the codehosting service: $ make run_all
2. In another terminal run: $ ssh bazaar.launchpad.dev

What happens:

$ ssh bazaar.launchpad.dev
No shells on this server.
Connection to launchpad.dev closed.

and two OOPSes are recorded:
The first one: OOPS-788SMPSSH28 NotImplementedError
The second one: OOPS-788SMPSSH29 AttributeError: 'NoneType' object has no attribute 'loseConnection'

Server gave the right response to the user, so we should not record the first oops for it. The second oops is another bug.

It might save time to fix bug 201853 at the same time as this one.