HTML proto 1

Inital commit for UX/VD proto
Iteration #2

Adding background for draw canvas
grid mod
Horizontal frames (WIP) + Inital DnD + color tuning

Adding dnd state:
  - DnD state + DnD handle
  - horizontal frames experiment WIP
  - try out gold color for selected tools
proto init implementation + less
Adding moar icons + anim preview + code removal
Fixing DnD, removing LESS, cleaning code

- Updating DnD to use Sortable instead of draggable/dropppable
(updating deps as well).
- much simpler logic for DnD
- Remove LESS for now since it's a bit yet overkill
- fix moveFrame function
Merge pull request #104 from juliandescottes/proto-ui-1

A bunch of UI changes