update license
update license

wizecore/graylog2-output-syslog,wizecore/graylog2-output-syslog,wizecore/graylog2-output-syslog,wizecore/graylog2-plugin-output-syslog,wizecore/graylog2-plugin-output-syslog,intelie/graylog2-plugin-output-syslog