[jdom-interest] getMixedContent -> getContent

[Alex Rosen]

> > (b) you accept the consequences and have to explain very
> > clearly what "children" means every time someone asks,
>
> Easy consequences to accept since no one's ever asked.  :-)

That's because the difference between getChildren() and getMixedContent() is
pretty obvious (though wrong). But the difference between getChildren() and
getContent() isn't.

Alex