(build) Fixing installation of PSBuild
(build) Fixing installation of PSBuild

- Based on conversation with Sayed:
https://twitter.com/sayedihashimi/status/580267084090716160

M-Zuber/ChocolateyGUI,gep13/ChocolateyGUI,chocolatey/ChocolateyGUI,sayedihashimi/ChocolateyGUI,chocolatey/ChocolateyGUI,gep13/ChocolateyGUI,paladique/ChocolateyGUI,digital-carver/ChocolateyGUI,wjk/ChocolateyGUI,chocolatey/ChocolateyGUI,gep13/ChocolateyGUI,chocolatey/ChocolateyGUI,alephnaughty/ChocolateyGUI,chocolatey/ChocolateyGUI,gep13/ChocolateyGUI,dlsteuer/ChocolateyGUI,gep13/ChocolateyGUI,paladique/ChocolateyGUI,RichiCoder1/ChocolateyGUI