Merge pull request #2 from creuzerm/backend

Backend
Merge pull request #3 from creuzerm/backend

Learning GIT, didn't include backend.php
Mods to UI: Email button, modal popups, button positioning,
introduction of logo image.
Moving image file (name)
Flushing out old png, disabling buttons - didn't work on server
Disabling email button until we have the functionality in
Updating gif, txt references to No 6/9. Updating CSS in ref to buttons.
Implementing loading modal, updating help and disclaimer content and
functionality
Language issue
Forcing preview tab on submit param in url
Hide email btn, hide preview tab when no submit, sample btn now below,
moving help btn
Updating look and feel for download STL link
Forcing 'Load data' to load wait state modal
TODO list
Merge pull request #4 from creuzerm/backend

Backend
Update backend.php

Fix bad path
Update README.md
Styling download stl button further
Update index.php

Added disclaimer text from Jon
Update index.php

defaulted the parametric cyborg beast as the other version is not yet manifold.