Merge pull request #176 from dirkrombauts/NuGet

Update Nuget packages
Make the non-checked image appear
The user should not be able to change the validation checkbox
Merge pull request #178 from dirkrombauts/ClickableValidation

Clickable validation
Exclude nAnt runner from solution
Delete nAnt source code
Remove nAnt binaries
Remove nant from build script
Remove nant from unzip script
Merge pull request #180 from dirkrombauts/Get-rid-of-nAnt

Get rid of nAnt