[PD-522] Made sure that user removed from employer group if not associated with a company
Undid my cleaning up of factories and tests and went with what just works
Merge branch 'master' of github.com:DirectEmployers/MyJobs into user-groups

Conflicts:
	seo/models.py
Merge pull request #920 from DirectEmployers/user-groups

[PD-641] Ensure that a user without companies does not belong to the Employer group