**Describe the bug** The latest MahApps release v1.6.4 contains wrong versioned assembly files (dll's). **To Reproduce** Run the following powershell script at command line ``` powershell .\build.ps1 -Target appveyor ``` and extraxt the generated NuGet package file inside the `Publish` folder. After that look to the file infos which shows us the wrong version 1.6.0. The version should be v1.6.4 **Environment(please complete the following information):** - MahApps.Metro version v1.6.4