alert wording fixes, include creator_user_id, ... Graylog2/graylog2-server#358
check startpage setting return code

repair not resetting permissions on changerequest

issue #175
listing configured alert conditions. #356
deleting alert conditions. Graylog2/graylog2-server#356
Merge git://github.com/Graylog2/graylog2-web-interface into develop