Added strong-name signing.

[WKleinschmit]

Signed assemblies can only load other signed assemblies. On the other hand, unsigned assemblies can load either.
Since EasyHttp is intended to be used in other projects it should be signed in order to be universally usable.

[bazzilic]

Having the private key (.snk file) in a public repo defies the whole idea of signing the assembly.

[WKleinschmit]

So does the fact that anyone can just create their own key at any time.

Don't confuse "Strong-Name" signing with "Authenticode" signing.
The former isn't a security measure but just a means to provide some more "uniqueness". Maybe it was intended otherwise by Microsoft originally but that never really work out.

It's only the latter that anyone (including Microsoft) will ever look at for security reasons.

And regarding that of course you're right. I'd never put an actual Authenticode key on a public repository.
But, since my original issue (#44) went unanswered, I had to do something. And you are still fee to move the key somewhere else.