update nuspec files

src/csharp/Grpc.Auth/Grpc.Auth.nuspec

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package>
+  <metadata>
+    <id>Grpc.Auth</id>
+    <title>gRPC C# Auth</title>
+    <summary>Auth library for C# implementation of gRPC - an RPC library and framework</summary>
+    <description>Auth library for C# implementation of gRPC - an RPC library and framework. See project site for more info.</description>
+    <version>0.5.0</version>
+    <authors>Google Inc.</authors>
+    <owners>jtattermusch</owners>
+    <licenseUrl>https://github.com/grpc/grpc/blob/master/LICENSE</licenseUrl>
+    <projectUrl>https://github.com/grpc/grpc</projectUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <releaseNotes>Release 0.5.0 of gRPC C#</releaseNotes>
+    <copyright>Copyright 2015, Google Inc.</copyright>
+    <tags>gRPC RPC Protocol HTTP/2 Auth OAuth2</tags>
+	<dependencies>
+	  <dependency id="BouncyCastle" version="1.7.0" />
+	  <dependency id="Google.Apis.Auth" version="1.9.1" />
+	  <dependency id="Grpc.Core" version="0.5.0" />
+    </dependencies>
+  </metadata>
+  <files>
+    <file src="bin/Release/Grpc.Auth.dll" target="lib/net45" />
+  </files>
+</package>

src/csharp/Grpc.nuspec

@@ -1,23 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
-<package >
+<package>
   <metadata>
     <id>Grpc</id>
     <title>gRPC</title>
     <summary>C# implementation of gRPC - an RPC library and framework</summary>
-    <description>C# implementation of gRPC - an RPC library and framework. See project site for more info.
-     This is an experimental release, not ready to use.
-    </description>
-    <version>0.2.0</version>
+    <description>C# implementation of gRPC - an RPC library and framework. See project site for more info.</description>
+    <version>0.5.0</version>
     <authors>Google Inc.</authors>
     <owners>jtattermusch</owners>
     <licenseUrl>https://github.com/grpc/grpc/blob/master/LICENSE</licenseUrl>
     <projectUrl>https://github.com/grpc/grpc</projectUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <releaseNotes>The first experimental release. Not ready to use.</releaseNotes>
+    <releaseNotes>Release 0.5.0 of gRPC C#</releaseNotes>
     <copyright>Copyright 2015, Google Inc.</copyright>
     <tags>gRPC RPC Protocol HTTP/2</tags>
     <dependencies>
-      <dependency id="Grpc.Core" version="0.2.0" />
+      <dependency id="Grpc.Core" version="0.5.0" />
     </dependencies>
   </metadata>
+  <files/>
 </package>