SignalR which works in Unity3D

Origin of this repo is here. Event signals are substituted with uTasks. Code was changed as close as possible to version 1.2.2 of official SignalR repo. Current version works with PC, iOS and Android for sure. It does not work with web player since web sockets are not implemented here yet. Newtonsoft.Json is here only for reference. Version 6.0.8 is used which was changed to remove compilation error because of framework version. To make it work on other platforms you have to use JSON .NET For Unity.