Add NuGet config for MSBuild
Add NuGet config for MSBuild

BenJenkinson/nodatime,malcolmr/nodatime,jskeet/nodatime,jskeet/nodatime,BenJenkinson/nodatime,nodatime/nodatime,malcolmr/nodatime,malcolmr/nodatime,malcolmr/nodatime,nodatime/nodatime