[pca] PCA htmlcorrectout - patch

[Martin Paul]

> Hmm, your solution is much more elegant ...

One of the reasons I implemented the out() function was to centralize 
output in one configurable function. There are still many print() calls 
in the code, though. I must admit that I never test(ed) HTML-output, as 
I'm not using it.

> I would prefer the additional output below the H2 header, not before.
> But it is just matter of opinion.

I put it there to make it look as close to the non-HTML output as possible.

Martin.