Releasing v5.7.0

Author: ENikS

package.props

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <Version>5.7.0</Version>
-    <PackageReleaseNotes>This package is distributed as .NET Standard 1.0, .NET 4.0, 4.5, 4.7 package.</PackageReleaseNotes>
+    <PackageReleaseNotes>This package is distributed as .NET Standard 1.0, .NET 4.0, 4.5, 4.6, 4.7 package.</PackageReleaseNotes>
   </PropertyGroup>
 
   <PropertyGroup>