Feature request, figure out the newest minor version

[sgartner-cityofboise]

Thanks for the cool tool @prjseal!

This may not be your focus, but I was really hoping that it would let me switch major versions without having to go figure out what the most recent major version was. For example, I was hoping this would work: https://psw.codeshare.co.uk/?InstallUmbracoTemplate=true&UmbracoTemplateVersion=10&CreateSolutionFile=true&SolutionName=MySolution&UseUnattendedInstall=false&IncludeStarterKit=false

Currently, the most recent version of v10 is 10.8.4, so I was hoping it would build the script for that version. What it does instead is it ignores the provided version altogether and produces a script without a version indicator at all.