ContactList test: split up setup/teardown
ContactList test: split up setup/teardown

I want to write a test for calling RequestBlockedContacts before
the connection goes online; splitting up the pre-connection and
post-connection setup and teardown makes this easier.

Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib