version 0.009; 2017-08-10
  * new functions to support the base-36 version of Exim message IDs
  * small wording improvement in documentation
  * no longer include a Makefile.PL in the distribution
  * in documentation, use four-column indentation for all verbatim
    material
  * in META.{yml,json}, point to public bug tracker
version 0.008; 2011-11-19
  * avoid latent bug of passing magic variables $1 et al into functions
    where in the future they might unexpectedly change value
  * include META.json in distribution
  * convert .cvsignore to .gitignore
  * add MYMETA.json to .gitignore
version 0.007; 2010-09-01
  * check for required Perl version at runtime
  * use full stricture in test suite
  * in Build.PL, explicitly declare configure-time requirements
  * remove bogus "exit 0" from Build.PL
  * add MYMETA.yml to .cvsignore
version 0.006; 2009-04-22
  * use simpler "parent" pragma in place of "base"
  * in documentation, use the term "truth value" instead of the less
    precise "boolean"
  * in documentation, refer to Win32::Guidgen rather than the non-existent
    Win32::Genguid
  * use full stricture in Build.PL
version 0.005; 2007-09-26
  * use "base" pragma to import Exporter behaviour
  * test POD syntax and coverage, and rename an internal function to
    satisfy the coverage test
  * build with Module::Build instead of ExtUtils::MakeMaker
  * complete dependency list
  * include signature in distribution
  * in documentation, separate "license" section from "copyright" section
version 0.004; 2007-02-05
  * bugfix: make exim_mid_time() and base62() work when called in list
    context (they used to assume that they were called in scalar context)
version 0.003; 2007-02-02
  * export and document functions base62() and read_base62(); these
    functions previously existed unexported, base62() from version 0.000
    and read_base62() from version 0.001
version 0.002; 2006-05-17
  * new function exim_mid_time() to construct time part of ID for an
    arbitrary time
  * more efficient and elegant base 62 conversion code
  * use integer arithmetic
  * put space between number and unit (SI style) in documentation
version 0.001; 2004-10-19
  * new function read_exim_mid() to extract information from an ID
  * mention what Exim is in the documentation
  * versioned dependencies in .pm
  * declare module dependencies in Makefile.PL
  * include Changes file
version 0.000; 2004-04-02
  * initial released version