various minor fixes

• updated control min and max to allow VSusp to be used for small cars, eg radio controlled cars
• adjusted various dimension highlighters so they look ok when working with small chasses (eg. RC cars)
• adjusted knuckle shape calculation to work better with small chasses
• fixed handling of disabled highlighters based on tire size mode
• added highlighters for explicit wheel and tire sizes
• fixed units on a few highlighters
• updated drag control triggers
• updated to dojo 1.3
• updated to jquery 2
• added canvas graphics option (still using SVG, though)
• fixed drag control positioning relative to zoom
• reposition drag controls after zoom change
• adjusted steering knuckle tab label
• improved IE warning box (IE8 and below are not supported)
• some template fixes