Don't override, instead extend `module_dirs`. Fixes #3754.
Merge pull request #3762 from UtahDave/develop

bump Windows Installer version to 0.13.1
Merge pull request #3755 from s0undt3ch/issues/3754

Don't override, instead extend `module_dirs`. Fixes #3754.
Add links to 0.13.1 installers