I suggest to append some note in Gelf input plugin documentation: only UDP + gzipped message support

[harobed]

Gelf input plugin support only:

• UDP
• gzipped Gelf message

This information isn't in documentation: https://www.elastic.co/guide/en/logstash/current/plugins-inputs-gelf.html

[ptqa]

See #48

[kolyshkin]

Information about plugin only accepting gzipped input was added in #28

The fix to this input plugin to accept uncompressed input was merged in #48, so it is fixed in 3.3.0 release: 76c111f

This issue can be closed now.