Update gelfd dependecy to allow uncompressed input

[ptqa]

Hi.

Since gelfd maintainer is not releasing new version of gem for about 2 years (lusis/gelfd#4) I've made a fork and published it to rubygems as gelfd2 (https://github.com/ptqa/gelfd2). I will try to maintain it as long as I can, although there is not a lot of activity.

I've tested this gem on my setup and it seems to work.

[bobzoller]

What's the official word here? I've now got my own fork of logstash-input-gelf for this reason, and I can see others doing the same.

[jordansissel]

I'm open to merging this, but:

• it currently has a merge conflict
• it needs to be reviewed

[rikwasmus]

#11 would be fixed with this.

[ptqa]

@jordansissel I've resolved merge conflict and fixed docs. Is it good for merge now?

[jamtur01]

It'd be awesome to see this merged - the Gelf input is largely broken without it. :(

[pkoretic]

Any news on this one?
While I'm asking should this plugin be taken by some other maintainer?

[os11k]

Any updates? I would be so happy if this can be merged.

[ptqa]

@colinsurprenant @yaauie @robbavey Guys, as we approach 3rd anniversary for this PR, I have rebased it on current master & it's passing all CI tests now. I'm not changing CHANGELOG.md to avoid merge conflicts. Maybe we can merge this PR this year?:)

[jsvd]

thanks for the patience and the work you've done here, version 3.3.0 has been published with these changes https://rubygems.org/gems/logstash-input-gelf/versions/3.3.0

[kolyshkin]

This made its way to logstash 7.4, released Oct 1, 2019
https://www.elastic.co/guide/en/logstash/7.4/logstash-7-4-0.html