added a new test for job offer completion
tests for #59
Editing Chairs for admins, including changing the deputy
implementation for #59
Merge branch 'develop-ak-accept-student' into develop-ak
fixed a problem with broken schema file
added feature tests for #64
Merge branch 'develop-ak' into develop-ak-approval-of-the-head-of-chair

Conflicts:
	spec/features/job_offer_pages_spec.rb