Revert "making https a default, using a self-signed cert"

This reverts commit 71449d2a9c67d8fef730272025dd54e3f9783574.
Users would see a security exception in their browsers when
they run this because they don't recognize the self-signed
cert from "Soumith Chintala". This would probably turn them
away and is overkill in terms of security.