NuGet PowerArgs package updated.
Chocolatey install updated to mention new PowerArgs version.
Fixes #189. Merge branch 'issue189' into dev
Merge pull request #192 from denis-mentey/dev

PowerArgs package update
Fixes #193. DirectoryCatalog is not initialized if script name isn't passed.
Merge pull request #194 from denis-mentey/dev

DirectoryCatalog is not initialized if script name isn't passed.