Add assembly signing.

[JackEker]

Update nuget binary. Update NLog & log4net dependency versions.

[lanwin]

Thanks for your pullrequest. Seems legit so far, but I am not sure about the signing.

I stopped using signing long ago since it brought mostly problems. I know other projects like mspec which switched to have a normal unsigned and a mspec-signed nuget package, maybe that would be a good choice here too.

What did you think?

[JackEker]

Ahh right, if you have problems with signing not to worry. :)

Both the dependencies are strongly named, so there shouldn't be any maintenance issues. Being signed also means that both unsigned and signed assemblies can use the project without an issue.

With regards to releasing a signed nuget package too, well that is a viable option but makes the maintenance and upkeep costs a little higher.

If you don't need this to be signed, not a problem. I have a version of the nuget package that's signed now, off the back of this work. So I can use that going forwards if needs be.