Update misc.js

Always return a pathgroup if we parse a svg.
Update polyline.class.js
Update polygon.class.js
Update text.class.js
Update text.class.js
Update path.class.js
Update line.class.js
Update parser.js
Update polygon.class.js

Never touch too much.
Update polyline.class.js

never touch too much.
Update text.js

So tests don't fail.
Update util.js

Any svg return a pathgroup
Merge pull request #6 from asturur/various-fixes

Various fixes