* Update all dependencies and deal with warning/errors
* Add updated AsyncEnumerable implementation
* Fix broken target
* Cleanup
* Remove obsolete message
* typo
* Update azure pipelines
* Update samples to .NET Core 3.0
* Pull out test change
* Install the .net core 3 SDK on the ubuntu image for the time being
* Target net core 3 for the unit tests because pipelines
* Update deps, fix test warnings.
* Support ns2.0
* Fix typo
* Remove ns1.1 support
* Net.Http and Net.Websockets.Client are not needed in ns2.0
* Move to net46 per volt
* Remove ns1.3 constants