xml-security-c branch renaming

[Cantor, Scott]

> Recently I noticed that Apache
> provides an unofficial Git "mirror" of the master SVN repository at
> https://github.com/apache/santuario-cpp/commits/trunk and I stitched it
> into the packaging of 2.0.0.  If nobody objects, I'd like to use this as a pseudo-
> master branch for the xml-security-c package and switch to the DEP-14
> repository layout by renaming the branches approriately:
> master->debian/master and upstream->upstream/latest.

I wouldn't. The mirror fails to update itself on a fairly regular basis from everything I've seen.

-- Scott