chore(release): bump to version: 4.0.0 (#151)

Author: parkhomenko

CHANGELOG.md

@@ -1,4 +1,4 @@
-## 4.0.0-preview
+## 4.0.0
 - Streaming support
 - 3rd party auth support
 - HTTP/2 support for .net standard 2.1 and above

FaunaDB.Client/FaunaDB.Client.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFrameworks>net45;netstandard1.5;netstandard2.0;netstandard2.1</TargetFrameworks>
-    <Version>4.0.0-preview</Version>
+    <Version>4.0.0</Version>
     <PackageId>FaunaDB.Client</PackageId>
     <Title>C# Driver for FaunaDB</Title>
     <Authors>Fauna, Inc.</Authors>

README.md

@@ -69,7 +69,7 @@ dotnet test FaunaDB.Client.Test --filter FullyQualifiedName~Test.EnvironmentHead
 First install the Nuget package by adding the package reference to your MSBuild project:
 
 ```xml
-<PackageReference Include="FaunaDB.Client" Version="4.0.0-preview" />
+<PackageReference Include="FaunaDB.Client" Version="4.0.0" />
 ```
 
 or by using your IDE and searching for `FaunaDB.Client`.