init push
Fix grade/_team
removed all the redundant codes where team_assignment? is checked and changed the corresponding views
removing comments and whitespace
minor modify on whitespaces
minor change on whitespace_v2.0
minor change on whitespace_v3.0
minor change on whitespace_v4.0
minor change on whitespace_v5.0
finish removing individual assignment
finish removing individual assignment
Merge branch 'master' of https://github.com/cececec/expertiza into e820
Closes #358

Conflicts:
	app/controllers/response_controller.rb
	app/controllers/signup_controller.rb
	app/models/assignment.rb
	app/models/assignment_participant.rb
	app/views/student_review/_responses.html.erb
	app/views/student_task/list.html.erb
	app/views/submitted_content/_submitted_files.html.erb
	config/routes.rb