Revert to make MDD submodule https again
Revert to make MDD submodule https again

Revert "Temporarily fixed #124, submodule issue. This might generate future issues with the github webpage generation since we are no longer using https."

This reverts commit 479802ef58ab49e6db809493f86bc6078aa04a1c.

kupiqu/DynaSim,DynaSim/DynaSim,DynaSim/DynaSim,asoplata/DynaSim,asoplata/DynaSim,DynaSim/DynaSim,kupiqu/DynaSim,DynaSim/DynaSim,asoplata/DynaSim,kupiqu/DynaSim,DynaSim/DynaSim,asoplata/DynaSim,asoplata/DynaSim,kupiqu/DynaSim