first preview, still not functional
Added splash screen
Coded close button
simplify
add progress service
workaround to allow running of scripts regardless of execution policy
Removed surplus  comment
first preview, still not functional
Merge branch 'master' into UI

Conflicts:
	src/PlatformInstaller.Tests/Chocolatey/PackageManagerTests.cs
	src/PlatformInstaller/AppBootstrapper.cs
	src/PlatformInstaller/Chocolatey/PackageManager.cs
	src/PlatformInstaller/Chocolatey/PowerShellRunner.cs
	src/PlatformInstaller/ContainerFactory.cs
	src/PlatformInstaller/MainView.xaml
	src/PlatformInstaller/MainViewModel.cs
Merge pull request #33 from Particular/UI

first preview, still not functional