Please read. Fixes and refactoring preparing for the review. This
introduces a lot of chagnes which might break custom installations.
There's more to come. So it's probably best to wait with merging
changes/upgrading.
- Procfile no longer in repo. Copy Procfile.example to Procfile and
  adapt to your environemtn
- Change to templates. I tried to keep the changes to a minimum, so
  custom templates should not be affected
- Bundles reloaction
- Bundles naming convention changed: the custom template is now name
  model.html not bundleName_template.html
- Uploaded and Generated files are now always in uuid named folders
- generated files now keep their original name prefix (e.g. flipper.ply
  becomes flipper.html, flipper.x3d, flipper_bin, etc. vs. uuid.html, et
  al.
- bundles now have a _shared directory which can hold shared assets that
  should be copied over to all template bundels in output (i.e. onlu one
  place to maintain recent x3dom.js, readmes, etc.)
- simplification of aopt binary restructured geo is now the default, no
  other optimizations possible
- and a whole heck of other stuff i don't remember ;)