Added error when no job locations are added.
imported the flat style from pd-844
Merge branch 'pd-830' of github.com:DirectEmployers/MyJobs into pd-842

Conflicts:
	templates/postajob/job_form.html
Merge branch 'master' of github.com:DirectEmployers/MyJobs into pd-842
Updated unit tests for locations.
Merge pull request #1063 from DirectEmployers/pd-842

[PD-842] Adds a validation error if no location is added