Fix symbol render

Fixed a bug that was not transferring the transform attribute from use tag to cloned tag.
Added attribute "instanced_by_use" to tags cloned to divide symbols from used symbols.
Added symbol to the list of tags not to be rendered ( if not instanced )
Changeg viewbox transform function to take care of all the tags that can support viewbox attribute.
For tags that are not svg, scale factor is ignored till we can sort out how to use 100% value for width attribute
ok, so it was grammar error!
Il 19/ott/2014 19:27 "Juriy Zaytsev" <notifications@github.com> ha scritto:

> In src/parser.js:
>
> > @@ -439,6 +439,7 @@
> >        }
> >
> >        el2.setAttribute('transform', currentTrans);
> > +      el2.setAttribute('instanced_by_use', '1');
>
> If it's used as an instance, then ether "instantiated" or "used as
> instance" or "instance of use". There's just no such word as "instanced".
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/kangax/fabric.js/pull/1759/files#r19061731>.
>