NuGet *.nuspec file using explicit <files/> element

sample.nuspec

<?xml version="1.0"?>
<package >
    <metadata>
        <id>MyProject</id>
        <version>1.0.0</version>
        <title>My Project</title>
        <authors>[email protected]</authors>
        <owners>[email protected]</owners>
        <projectUrl>http://git-stash.myco.com/projects/CV/repos/myproject/browse</projectUrl>
        <iconUrl>http://git-stash.myco.com/projects/CV/avatar.png?s=256</iconUrl>
        <requireLicenseAcceptance>false</requireLicenseAcceptance>
        <description>my amazing project</description>
        <releaseNotes>This is the initial release.</releaseNotes>
        <copyright>Copyright 2015 My Company</copyright>
        <tags>tag1 tag2 tag3</tags>
    </metadata>
    <files>
        <file src="bin\Release\net35\*.dll" target="lib/net35" />
        <file src="bin\Release\net35\*.exe" exclude="**vshost**" target="lib/net35" />
        <file src="bin\Release\net35\*.config" target="lib/net35" />
        <file src="bin\Release\net35\*.xml" target="lib/net35" />
        <file src="bin\Release\net35\*.pdb" target="lib/net35" />

        <file src="bin\Release\net40\*.dll" target="lib/net40" />
        <file src="bin\Release\net40\*.exe" exclude="**vshost**" target="lib/net40" />
        <file src="bin\Release\net40\*.config" target="lib/net40" />
        <file src="bin\Release\net40\*.xml" target="lib/net40" />
        <file src="bin\Release\net40\*.pdb" target="lib/net40" />

        <file src="bin\Release\net45\*.dll" target="lib/net45" />
        <file src="bin\Release\net45\*.exe" exclude="**vshost**" target="lib/net45" />
        <file src="bin\Release\net45\*.config" target="lib/net45" />
        <file src="bin\Release\net45\*.xml" target="lib/net45" />
        <file src="bin\Release\net45\*.pdb" target="lib/net45" />

        <file src="**\*.cs" exclude="obj\**" target="src" />
    </files>
</package>