Prevent users from leaving a blank message. Closes #113.
Prevent users from leaving a blank message. Closes #113.

stefanb/osm-tasking-manager2,stefanb/osm-tasking-manager2,ethan-nelson/osm-tasking-manager2,KaiDalgleish/osm-tasking-manager2,stefanb/osm-tasking-manager2,jarmokivekas/osm-tasking-manager2,stefanb/osm-tasking-manager2,ethan-nelson/osm-tasking-manager2,baditaflorin/osm-tasking-manager2,jarmokivekas/osm-tasking-manager2,jarmokivekas/osm-tasking-manager2,KaiDalgleish/osm-tasking-manager2,ethan-nelson/osm-tasking-manager2,baditaflorin/osm-tasking-manager2,ethan-nelson/osm-tasking-manager2,jarmokivekas/osm-tasking-manager2,baditaflorin/osm-tasking-manager2,KaiDalgleish/osm-tasking-manager2,KaiDalgleish/osm-tasking-manager2,baditaflorin/osm-tasking-manager2