Merge remote-tracking branch 'origin/master' into artifacts-expire-date

config/initializers/doorkeeper.rb

...remove_deprecated_issues_tracker_columns_from_projects.rb

db/schema.rb

lib/api/session.rb

lib/gitlab/auth.rb

lib/gitlab/backend/grack_auth.rb

spec/controllers/projects/issues_controller_spec.rb

spec/factories/projects.rb

spec/features/atom/dashboard_issues_spec.rb

spec/helpers/issues_helper_spec.rb

spec/lib/banzai/filter/redactor_filter_spec.rb

spec/lib/gitlab/auth_spec.rb

spec/lib/gitlab/project_search_results_spec.rb

spec/lib/gitlab/search_results_spec.rb

spec/models/concerns/milestoneish_spec.rb

spec/models/event_spec.rb

spec/models/note_spec.rb

spec/models/project_services/bamboo_service_spec.rb

spec/models/project_services/teamcity_service_spec.rb

spec/models/project_spec.rb