Hack: alter the migrations for staticpages since they seem have a flaw
Partially revert bfd078b8c6e97eb921752691602c0a4eb2311394

The existing name is not 'pootle' so the reverted query was returning an
empty set, causing Django to try to create and new database entry which
fails with integrity error.
Partially revert last staticpages migrations hack

Now it should be possible to deploy from scratch and upgrade an existing
installation without any problem.