Added catch for OpenID Failures in Launchpad Import

There are several users in the launchpad system that do not have
an openid (example: janitor). We've added a catch block that
addresses these exceptions by granting the user an invalid openid.

Change-Id: Ic1a66c6364833a813fcd9516283c3aea0219c8b5
Merge "Added catch for OpenID Failures in Launchpad Import"