including *.cs files in nuspec for the symbols package
including *.cs files in nuspec for the symbols package

rangp/RequireJSDotNet,rangp/RequireJSDotNet,rangp/RequireJSDotNet,davidsk/RequireJSDotNet,vtfuture/RequireJSDotNet,davidsk/RequireJSDotNet,davidsk/RequireJSDotNet,vtfuture/RequireJSDotNet,vtfuture/RequireJSDotNet