Bumped version to v0.4.0
Bumped version to v0.4.0

Graylog2/graylog2-puppet,Graylog2/graylog2-puppet,treydock/graylog2-puppet,Jimdo/graylog2-puppet,Graylog2/graylog2-puppet,Jimdo/graylog2-puppet,synyx/puppet-graylog2,Jimdo/graylog2-puppet,treydock/graylog2-puppet,treydock/graylog2-puppet