Add HTML-escaping to code examples in rST tempate of module-formatter
Add support for specifying port, addresses with phrases and attaching files
Add support for custom headers and document version_added for new options
X-Mailer header added :)
protect empty address lists & attachment list, and add bcc
- fixed template (it was the template), adding indentation with Jinja2
- added description of code examples to man-page template (was missing)
- fixed fireball, cron, and debug module examples to confrom