Broken link rewriting in snippets

[Reinhold Kainhofer]

Hi John,
The www-post script has another bug with link rewriting: For the snippets 
pages, it checks and replaces links using the regexp:
       r'href="(?:\.\./)?lilypond(|-internals|-learning|-program)'
Unfortunately, "lilypond-snippets-big-page.html" also matches this regexp, so 
internal links in the snippets pages are also rewritten to point to 
Documentation/user/!

Attached is a patch to fix this: I have to explicity add -snippets to the 
regexp and can only later on exclude those matches in a replacement function.

Okay to push to master?

Cheers,
Reinhold

-- 
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Reinhold Kainhofer, Vienna University of Technology, Austria
email: address@hidden, http://reinhold.kainhofer.com/
 * Financial and Actuarial Mathematics, TU Wien, http://www.fam.tuwien.ac.at/
 * K Desktop Environment, http://www.kde.org, KOrganizer maintainer
 * Chorvereinigung "Jung-Wien", http://www.jung-wien.at/

0001-Fix-link-rewriting-for-snippets.patch
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