Version 2.1: released 2009-12-02
 * document use with Upstart
 * mail gateway processes now run as same user as web process

Version 2.0:
 * use CAS for authentication
 * implement HTML editor for new messages

Version 1.0:
 * templates are now merely a property of "jobs"
   (no longer top-level objects)
 * much-improved user interface
 * scheduled delivery times are now available
 * delivery daemon to actually perform the deliveries

Version 0.6: put in production 2007-05-18
 * support for predefined groups
 * job can be created in receive_template.pl
 * lots of behind-the-scenes changes (hopefully nothing will break)

Version 0.5: not really released
 * `make install' now creates etc, jobs, templates, and tmp directories
 * HTML view for a message

Version 0.4: released 2007-02-02
 * prepared for an actual release

Version 0.3: not released
 * export delivery status data as comma-delimited file

Version 0.2: released 2006-03-09
 * Initial release