Reimplement OAuth2 library - Step 1

Src/GoogleApis.DotNet4/GoogleApis.DotNet4.csproj

Index: Src/GoogleApis.DotNet4/GoogleApis.DotNet4.csproj
===================================================================
--- a/Src/GoogleApis.DotNet4/GoogleApis.DotNet4.csproj
 b/Src/GoogleApis.DotNet4/GoogleApis.DotNet4.csproj
@@ -7,7 7,7 @@
 <ProjectGuid>{C4DA0ABE-2C2E-4BB8-9881-5FF80B0C1AFD}</ProjectGuid>
 <OutputType>Library</OutputType>
 <AppDesignerFolder>Properties</AppDesignerFolder>
- <RootNamespace>Google.Apis</RootNamespace>
 <RootNamespace>Google</RootNamespace>
 <AssemblyName>Google.Apis.PlatformServices</AssemblyName>
 <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
 <FileAlignment>512</FileAlignment>
@@ -78,6 78,7 @@
 </ItemGroup>
 <ItemGroup>
 <Compile Include="Apis\Logging\Log4NetLogger.cs" />
 <Compile Include="Apis\Util\Store\FileDataStore.cs" />
 <Compile Include="Properties\AssemblyInfo.cs" />
 </ItemGroup>
 <ItemGroup>
@@ -91,7 92,11 @@
 </ItemGroup>
 <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
- <Import Project="..\..\packages\Microsoft.Bcl.Build.1.0.8\tools\Microsoft.Bcl.Build.targets" />
 <Import Project="..\..\packages\Microsoft.Bcl.Build.1.0.10\tools\Microsoft.Bcl.Build.targets" Condition="Exists('..\..\packages\Microsoft.Bcl.Build.1.0.10\tools\Microsoft.Bcl.Build.targets')" />
 <Target Name="EnsureBclBuildImported" BeforeTargets="BeforeBuild" Condition="'$(BclBuildImported)' == ''">
 <Error Condition="!Exists('..\..\packages\Microsoft.Bcl.Build.1.0.10\tools\Microsoft.Bcl.Build.targets')" Text="This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=317567." HelpKeyword="BCLBUILD2001" />
 <Error Condition="Exists('..\..\packages\Microsoft.Bcl.Build.1.0.10\tools\Microsoft.Bcl.Build.targets')" Text="The build restored NuGet packages. Build the project again to include these packages in the build. For more information, see http://go.microsoft.com/fwlink/?LinkID=317568." HelpKeyword="BCLBUILD2002" />
 </Target>
 <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
 Other similar extension points exist, see Microsoft.Common.targets.
 <Target Name="BeforeBuild">