Top 20 NuGet pusherclient Packages

Fork with some updates of https://github.com/justin-lavelle/pusher-websocket-dotnet
Fork of https://github.com/pusher-community/pusher-websocket-dotnet to enable NetStandard2.0 support
Fork of https://github.com/justin-lavelle/pusher-websocket-dotnet-netstandard to disable syslog debug messages.