Remove mandatory dependency on RabbitMQ

[gab]

trafficstars

I've used your library to log to my GrayLog server and it works well, so thanks for that.

I'm only using the UDP target though, and I'm annoyed by the unneeded RabbitMQ dependency. It would be nice if everything RabbitMQ-related was split off into its own Nuget package.

[Pliner]

Hi @hVostt @gab,

Sorry for long delay... Unfortunatly, Now I haven't so much time for my projects.

But you can make pull requests ;-)