#1113794 by oadaeh: Added the option of excluding some parts of the sent message from the archived copy.

#1356068 by oadaeh: Fixed a bug where the default node type workflow settings were not being respected.

#895808 by oadaeh: added the option for specifying what the opt out message is that is displayed to users.

#812518 by oadaeh: don't show opt-out options when the user is not part of any categories. Also, in light of that, eliminated opting out during registration.

#468464 by oadaeh: Added an admin option to specify when to check the HTML. Also, fixed a bug in the selecting of input formats during the construction of the message body.

Added the ability to sned multiple attachments. Tweaked MIME behaviors and/or settings. Made attachments actual node attachments. Made some unrelated code rearrangments.

#460648 by mellenburg, drupalok: Changed logic flow and reporting for when there are no recipients or when the sender is the only recipient.

#543942 by ed523: Changed the way user roles are iterated through to allow opting out of categories.

#371285 by sharplesa, MrWerewolf: Added an database update to change a vaiable name to match the existing code usage.

#165912: Added the ability for users to opt out of specific categories. Also, changed some of the text messages to use consistent wording and/or case.

#394318 by ProfStein: Fixed how the default category settings get configured so that values actually go into the variables.

#375815 by cYu: Added a check for an empty array before setting values in it. Also added some missing uninstall commands.

Many changes, including #231369 by akolahi, #290913 by compuguru & karlcw and MIME handling & several minor improvments by oadaeh.

#289229 by ulf1: corrected ['Bcc'] to ['headers']['Bcc']. Also, commented out references to Mime Mail, and corrected the use of db_placeholders().