Merge branches 'feature/project-export-ui-experimental' and 'feature/project-import' of gitlab.com:gitlab-org/gitlab-ce into feature/project-export-ui-experimental

# Conflicts:
#	Gemfile.lock
#	app/helpers/todos_helper.rb
#	app/models/todo.rb
#	app/views/projects/edit.html.haml
#	lib/gitlab/import_export/import_service.rb