Fix features syntax

features/project/commits/comments.feature

features/project/wiki.feature

features/steps/admin/broadcast_messages.rb

features/steps/admin/settings.rb

features/steps/dashboard/new_project.rb

features/steps/groups.rb

features/steps/profile/profile.rb

features/steps/project/merge_requests.rb

features/steps/project/project.rb

features/steps/search.rb

features/steps/shared/diff_note.rb

features/steps/shared/note.rb

spec/features/profiles/preferences_spec.rb