resolved bug - ability to read instead of show
Merge branch 'develop' into #380_Checkbox_for_student
students only can activate themselves
students can see for students visible students on the students page
#380_Checkbox_for_student
Merge branch 'develop' into #380_Checkbox_for_student
removed unnecessary space
Migration for pdf attachment of job offer
#456_PDF_Upload_Job_Offer
Locales "PDF" for view
#456_PDF_Upload_Job_Offer
form with option for uploading a job offer as pdf attachment
show view showing that document was uploaded
#456_PDF_Upload_Job_Offer
job offer controller permitting offer_as_pdf attribute - whitelisted
job offer model has attached file offer_as_pdf
validates for pdf
#460_PDF_Upload_Job_Offer
Merge branch 'develop' into #456_PDF_Upload_Job_Offer

Conflicts:
	db/schema.rb
validation of user photo - photo should be less than 5 megabytes
fix_upload_size_of_profile_image
- deleted code, which was commented out
- corrected indentation
#380_Checkbox_for_student
Merge branch 'develop' into #380_Checkbox_for_student

Conflicts:
	app/controllers/students_controller.rb
	app/models/ability.rb

#380_Checkbox_for_student
- more explicitly control of rights
#380_Checkbox_for_student
applied correct scopes for different cases of visibility

#380_Checkbox_for_student
adapted test cases for new visibility statuses
#380_Checkbox_for_student
Merge branch 'develop' into #380_Checkbox_for_student
#456_PDF_Upload_Job_Offer
Merge branch 'develop' into #456_PDF_Upload_Job_Offer

Conflicts:
	app/controllers/job_offers_controller.rb
	app/views/job_offers/_form.html.erb
	db/schema.rb