Changes since 0.70.1:
* Metapost 1.801.
* Small patches from TeXLive 2013, as well as an update to the
latest libraries (libpng, poppler, etc.)
* Speed up printing (of TeX strings) to the terminal and log.
* New lua function node.end_of_math().
* Fixed a memory leak in the lua function pdfscanner.scan().
* New expandable primitive \Uchar.
* New version of lnodelib.c with speedups by Hans and Luigi.
Also added some extra sanity checks to the Lua node field
setting functions.
* Support 'umath' in tex.extraprimitives(), so that formats can
make the \Umath* primitives unprefixed, now that they will be
provided by XeTeX as well.
* Removed a bunch of deprecated primitives
* \AlephVersion, \Alephrevision, \Alephversion, \Alephminorversion
* \OmegaVersion, \Omegarevision, \Omegaversion, \Omegaminorversion
* \omathcode, \odelcode, \omathchardef, \omathchar, \omathaccent,
\odelimiter, \oradical
* \Umathbotaccent, \Umathaccents
* Fix large file support.
* Fix Lua's loadfile().
* Removed the cidmap callbacks again (let that be done by user lua
code after the fact).
* Removed the fatal error on fonts where num_glyphs is too high,
as that problem is actually harmless.
* Some compilation issues under Win32 and Solaris resolved.
* Allow math extender objects to be zero width.
* The 'epdf' library has been extended to deal with finding and
saving embedded files (catalog:numEmbeddedFiles() and catalog:
embeddedFile, new EmbFile object).
* lua 5.2
There are no patches to the core Lua files; a future version
of luatex will switch to loading the regular lua 5.2 dynamic
library instead of depending on a statically compiled
one.
* A bleeding-edge version of luasocket is included, as there
is no 5.2-compatible official release yet.
* A new lua extension is the two-argument version of
string.dump from Luajit.
* Two new callbacks: find_cidmap_file and load_cidmap_file
* update various used libraries.
* new 'pdfscanner' lua library.
* various OpenType math fixes, including \Umathcharnumdef.
* improved placement of bottom accents.
* various other small fixes.
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