Add IPv6 to C# ZeroTier.Sockets, Add C# selftest, Misc C API improvements

pkg/nuget/ZeroTier.Sockets/nuget.org.md

@@ -1,9 +1,9 @@
-[ZeroTier](https://www.zerotier.com) SDK
+[ZeroTier](https://www.zerotier.com)
 =====
 
-Connect physical devices, virtual devices, and application instances as if everything is on a single LAN.
+Securely connect application instances, physical devices, and virtual devices as if everything is on a single LAN. ZeroTier brings your network into user-space. No root, and no host configuration requirements.
 
-ZeroTier brings your network into user-space. We've paired our network hypervisor core with a TCP/UDP/IP stack [(lwIP)](https://en.wikipedia.org/wiki/LwIP) to provide your application with an exclusive and private virtual network interface. All traffic on this interface is end-to-end encrypted between each peer and we provide an easy-to-use socket interface similar to [Berkeley Sockets](https://en.wikipedia.org/wiki/Berkeley_sockets). Since we aren't using the kernel's IP stack that means no drivers, no root, and no host configuration requirements.
+We've paired our network hyper-visor core with a TCP/UDP/IP stack [(lwIP)](https://en.wikipedia.org/wiki/LwIP) to provide your application with an exclusive and private virtual network interface. All traffic on this interface is end-to-end encrypted between each peer and we provide an easy-to-use socket interface similar to [Berkeley Sockets](https://en.wikipedia.org/wiki/Berkeley_sockets).
 
  - Website: https://www.zerotier.com/
  - ZeroTier Manual: https://www.zerotier.com/manual/
@@ -11,19 +11,20 @@ ZeroTier brings your network into user-space. We've paired our network hyperviso
  - SDK Repo: https://github.com/zerotier/libzt
  - Forum: https://discuss.zerotier.com
 
-## 1.3.3-alpha.2 Release Notes
+## 1.3.4 Release Notes
 
-### New namespace structure:
-- `ZeroTier.Core` (API to control a ZeroTier Node)
-    - `class ZeroTier.Core.Node`
-    - `class ZeroTier.Core.Event`
-- `ZeroTier.Sockets`
-    - `class ZeroTier.Sockets.Socket`
-    - `class ZeroTier.Sockets.SocketException`
-- `ZeroTier.Central` (upcoming)
+### Added:
+ - IPv6 Support
+ - `Socket.ReceiveTimeout`
+ - `Socket.SendTimeout`
+ - `Socket.ConnectTimeout`
+ - `Socket.SendBufferSize`
+ - `Socket.ReceiveBufferSize`
+ - `Socket.Ttl`
+ - `Socket.LingerState`
+ - `Socket.KeepAlive`
+ - `Socket.NoDelay`
+ - `Socket.Blocking`
 
-### Added to Socket API
- - `Socket.ReceiveTimeout`, `Socket.SendTimeout`, etc.
-
-### Bugs
- - Fixed memory leak caused by unmanaged resources not being released.
+### Bugfixes:
+ - Minor C API fixes