[giow] (3) Change how tracing a path works so that it's more similar to SVG, PDF, etc.
Affected topics: Canvas

git-svn-id: http://svn.whatwg.org/webapps@8225 340c8d12-0b0e-0410-8428-c7bf67bfef74
[e] (0) typo in recently-added figure example
Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@8226 340c8d12-0b0e-0410-8428-c7bf67bfef74