- Repair several wrong paths cause by the move of TEXMFMAIN that is
the location of TLUtils.pm used by updmap

- Refresh formats if required

- 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.
On Macs, Core Text is used instead of the (deprecated) ATSUI.
Prefer TrueType/OpenType fonts to Type1 when the names are the same.
Fix occasional mismatch in font finding between XeTEX and xdvipdfmx.
Support OpenType math cut-ins.
+ xdvi: now uses FreeType instead of t1lib for rendering.
+ microtype.sty: some support for XeTEX (protrusion) and LuaTEX
(protrusion, font expansion, tracking), among other enhancements.
- Update biblatex-biber to 1.7
- Udpate biblatex of TeXLive 2013 to 2.7a