- Change /bin/env to /usr/bin/env in latexdiff tool below doc

- Be aware that the package texlive-ascii-font is the former
texlive-ascii

- Do not override TEXMFLOCAL with TEXMFMAIN as this is now TEXMFDIST

- Drop dependency freeglut-devel of texlive-asymptote (bnc#833498)

- Make sure that TEXMFMAIN is /usr/share/texmf now
- Replace texmf.cnf if really required that is do not install
as .rpmnew but move the old to .rpmold

- Move leipzig.tex from doc/latex/leipzig/leipzig.tex to
tex/latex/leipzig/leipzig.tex

- Update to TeXLive 2013 (timestamp 20130620)
+ Distribution layout: the top-level texmf/ directory has been
merged into texmf-dist/, for simplicity. Both the TEXMFMAIN
and TEXMFDIST Kpathsea variables now point to texmf-dist.
+ Many small language collections have been merged together,
to simplify installation.
+ MetaPost: native support for PNG output and floating-point
(IEEE double) has been added.
+ LuaTEX: updated to Lua 5.2, and includes a new library
(pdfscanner) to process external PDF page content, among
much else (see its web pages).
+ XeTEX (also see its web pages for more):
The HarfBuzz library now used for font layout instead of ICU.
Graphite2 and HarfBuzz are used instead of SilGraphite for Graphite layout.