Shimmer isn't ready yet

We have to go back to ClickOnce. Why.
Add a silent updater
Don't need that script anymore
Add a portable confirguration
Configure everything for x86, add a build script and remove NuGet cruft
Finalize the changelog
Merge pull request #70 from flagbug/clickonce-why-why-why-I-dont-want-this

ClickOnce installer