jole78/TeamCity-MetaRunners — pull request #1 by ringods (2013-11-28 16:07:43+00:00)
Title: PowerShell script uses .NET 4 features, so setting minimal Powershell version

The Powershell script code uses String.IsNullOrWhiteSpace. This method was introduced in .NET 4.0. PowerShell 3.0 is required to use .NET 4.0 features.