Centralize VersionPrefix information in Version.props (dotnet#2439)

Centralize VersionPrefix information in Version.props (dotnet#2440)

.NET Core 3.1.1

.NET Core 3.0.2

Update dependencies from https://dev.azure.com/dnceng/internal/_git/d…

…otnet-wpf-int build 20200114.16 (dotnet#2434)

- Microsoft.DotNet.Wpf.DncEng - 5.0.0-alpha.1.20064.16

Update dependencies from https://dev.azure.com/dnceng/internal/_git/d…

…otnet-wpf-int build 20200114.16 (dotnet#2434)

- Microsoft.DotNet.Wpf.DncEng - 5.0.0-alpha.1.20064.16

.NET Core 3.1 GA

.NET Core 3.0.1

.NET Core 3.1 Preview 3

Merge pull request dotnet#2181 from drewnoakes/dev/drnoakes/msbuild-a…

…ll-projects

Remove modification of MSBuildAllProjects property