increased last employers on homepage to 5
Staff Members now can show their own jobs from archive
Removed HPI Assistant, Change existing data when merging it to develop!
Merge pull request #448 from hpi-swt2/feature/small-improvements

Feature/small improvements
seeds fix and employers description with simple format
Merge branch 'develop' into new-style

Conflicts:
	app/views/employers/_form_fields.html.erb
	app/views/employers/show.html.erb
	app/views/job_offers/archive.html.erb
small style issues