Add WineGums example by kynd.info.
Optimise WineGums example.
Change title of WineGums example.
Optimise WineGums example.
Precalculate side points again for better performance.
Convert to cleaner OOP style.
Some more simplifications and style changes.
WineGum example: Some more style changes.
WineGum example: Untangle the offset calculation code a bit.
WinGums: Some more code clean-up.
Clean up white-space.
Implement propper support for pointer events and MSPointer events.

Closes #406 and #336.
Avoid dividing with zero while splitting curves
Deactivate dragstart events on view too.
Stick to 80 char line length.
Remove accidentally committed console.log()
Improve handling of _changed() events in Segment.
Implement Segment#transform()
Implement SVG-style #arcTo() version.

This should fix the arc related part of issue #413.
Include an SVG arc example.