Upstream changes:
2012-08-28 Andrew Ford <a.ford@ford-mason.co.uk>
* version 0.05
* added more symbols
* build-character-table now builds a %provided_by map that gives the LaTeX package
that provides the LaTeX command used in the encoding
* removed unimplemented "use_textcomp" option
* added "packages" option to latex_encode() to pass a reference to a hash that is
updated with the names of optional LaTeX packages (styles) that implement the
commands included in the encoded string
2012-08-27 Andrew Ford <a.ford@ford-mason.co.uk>
* version 0.04
* added requirement for Perl 5.8.1 or later due to deficiencies in
Unicode handling of earlier Perl versions.
* updated encoding table to add Turkish characters (RT #55526) and to not include
spaces after accented characters (RT #49357)
* switch from 'base' to 'parent' for setting up inheritance
* added add_latex_encodings() and remove_latex_encodings() functions to update the
encoding table.
* allow 'add' and 'remove' specifiers to be provided on the 'use' statement