Change build with devenv to more common used msbuild
Change AppVeyor cache saving from zip to 7zip with maximal compression
Fixes#2620
Signed-off-by: Vitalii Koshura <lestat.de.lionkur@gmail.com>
Until there is a better mechanism to control deployments on AppVeyor a deployment will happen for every merge into master. This will prevent it from failing.