It is possible to notice if Graylog connection is lost.

[akselila]

Originally EasyGelf swallows all exceptions.

I want to use EasyGelf with TCP-protocol to get connection lost -errors. I have NLOG fallbackgroup that should notice if Graylog connection is lost. In case of failure it should change to next log target. If all errors are handled inside EasyGelf, target is never changed in NLOG fallbackgroup.

So these changes makes possible to use EasyGelf with NLOG fallbackgroup.