Change gitmodules URL for willie.wiki

This was done because I got annoyed of having a server that repeatedly errored on this. I do not want the server to have access to my github account.
Merge pull request #630 from janandjohn3/fix-gitmodules

Change gitmodules URL for willie.wiki

Can't think of a reason why a sub module should use ssh.
Correctly handle unicode in config wizard

Fixes #634