Dot2tex

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Released 2007-07-28.

- Added the TikZ output format (``-f tikz``)
- Added the ``lblstyle`` attribute for styling graph, node and edge labels.
(PGF and TikZ only)
- Added the ``--tikzedgelabels`` option for placing edge labels without
using xdot edge label information (tikz and pgf output format only).
- Added a topath edge attribute for using TikZ' to paths (tikz and
pgf only).
- Information about the selected output format is now stored in the graph
generated in preprocessing mode. No longer necessary to specify an
output format in the final run.
- Edges with the same source and dest are now handled correctly in
preprocessing mode. Only the edge defined last was preprocessed.
- Added the ``--nodeoptions`` and ``--edgeoptions`` options and corresponding
``d2tnodeoptions`` and ``d2tedgeoptions`` graph attribute (tikz only).
- Added the ``exstyle`` attribute. Ignored in preprocessing mode. (pgf and
tikz only)

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- Special TeX char escape code rewritten. Now works as intended.
The ``$`` character was not properly escaped.
- Added ``&`` to list of special characters.

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- Fixed a severe bug in the interpretation of color attributes in edges.
Colors were not reset after a change to a single edge color.

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- Node margins are now interpreted correctly for nodes with size < minsize.
- Nodes now grow correctly to fit labels when size > minsize
- Updated documentation with an example on how to change node sizes.

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Released 2007-04-23

- Fixed a number of preprocessing bug related to how node attributes are
interpreted.
- Added automata.dot example.
- Changed the name of the ``--preview`` option to ``--crop``.
- Added the --preproc option for preprocessing labels with preview.sty.
- Added the --debug option. Writes detailed debug information to dot2tex.log.
- The ^ char is now properly escaped.
- Default PGF/TikZ template now requires PGF v >= 1.09.
- Added new template tags to support preprocessing mode.
- Templates for preprocessing, output and figonly mode can now be put
in the same file.
- Added the ``--alignstr`` option.
- Added the ``--valignmode`` option.
- Added the ``--usepdflatex`` option.

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Released 2006-10-22

- Added a few more helpfull error messages.
- Added the ``--figonly`` option.
- The ``$`` character is now properly escaped.
- Fixed a few issues when converting between Graphviz to backend styles.
- Fixed scoping issues when drawing edges in duplicate mode.
- Added more intelligent detection of xdot input. Older versions of
Graphviz does not include the ``xdotversion`` attribute in the
output.
- Styles are now transfered to the PSTricks and PGF/TikZ backend.
- Added a force straight line option to avoid using curves for
straight edges.
- PGF/TikZ is now set as the default backend.
- Fixed a line ending issue in data converted internally to the xdot format.
- Added the ``-V`` version command line switch
- Added the ``--encoding`` option
- Added option for switching node and graph draw order.
- Fixed bug in PGF/TikZ color handling
- Added the ``--preview`` option to crop graphs
- Added ``--figpreamble`` and ``--figpostamble`` options and graph attributes.
- Added ``--docpreamble`` option and ``d2tdocpreamble`` graph attribute
- Added ``--graphstyle`` option
- Added ``--gvcols`` option
- Changed default PGF/TikZ arrow type to >=latex'