Added new Pagesize definition to paper.scm (issue4368049)

[percival . music . ca]

I don't think we want to add papersize_test.tely to the repository.
It's very important that we have such a file while evaluating the patch,
but I think it would be better sent as an attachment in an email to
-devel.

We certainly don't want to add it to build/foo, since that would mess up
the compiling instructions.  It would be nice to have it as a regression
test, but we don't have those for lilypond-book.

... no wait, we do!  hmm... I'll look into this.  It might be a bit
tricky, so I'll handle it myself.


Could you create a second version of the patch which does not include
paper-test.tely ?
WARNING: I think that if you do "git rm build/paper-text.tely", it'll
completely remove the file, so please make sure that you make a copy of
it elsewhere first.

http://codereview.appspot.com/4368049/