Version should be included in the User-Agent header

[WilliamsJason]

Right now we can't determine anything about the version of WDPW which is calling WDP from the User-Agent header. We should get information added which will help out here.

One thing to keep in mind is that people forking the project, etc can complicate this beyond 'official released versions'.

[david-c-kline]

Not sure we can enforce a version scheme here since this is open and the version may jump or stay static. That said, I am willing to have one :)

[david-c-kline]

assigning to me. I have a fix

[WilliamsJason]

I also think it would be nice if we come up with a plan to distinguish between uses of the NuGet package (unchanged DLL) and privately built versions of the DLL (of which we can't really make judgements about the version since the private fork could be modified as much as they want). Seems like the version schema we develop could capture that information.

[david-c-kline]

fixed with #72. We will determine a special annotation for the NuGet package as we prepare that.