mandrill 7.x-2.1

Changes since 7.x-2.0:

Highlights

1. Added support for Mandrill webhooks.
2. Various issue fixes.

Issues

1. #2404425 by phreestilr: Fatal error: Call to a member function getList() on a non-object
2. #2298069 by jeff.logan: Division by 0 in admin/reports/mandrill
3. #2390441 by klausi: Support inline file attachments with mimemail fileconten
4. #2388793 by dileepmaurya: Mandrill Template ignores module-level mailsystem keys
5. #2267307 by bkonetzny: $sub_acct_options defined twice

Other fixes / improvements

1. Cleaned up permissions labeling.
2. Add clearer messaging around usage of the mandrill test module.
3. No longer making calls to mandrill object when it fails to load.
4. Enforcing message IDs for in-reply-to header consistency.
5. Using email address rather than subject add-ons to track threads.
6. Allowed for overriding headers.
7. Refactored sending of emails into its own method so it can be re-used for digest mode.
8. Refactored email frequency preference tracking.
9. Prevented all authenticated users having access to manipulate all group nodes.
10. Refactored discussions so they are now created as the user who sends email, not the creator of group.
11. Group field is now hidden on discussion creation for non-administrative users when group is known.
12. Added warning when comment permissions appear to be set wrong.
13. Refactored install function names for consistency.
14. Using "from" to set the reply email, letting Mandrill move it to the reply-to.
15. Fixed access to groups fields when user does not have "administer mandrill discussion group" permission.
16. Replaced obsolete "administer mandrill groups inbound domains" permission with "administer mandrill".
17. Added delete buttons to domains on the admin page.
18. Added permission "administer mandrill groups domains" for group administration.
19. Added membership type setting to membership field.
20. No longer creating default group membership field on discussions.
21. Fixed bug in uninstall caused by poorly formatted array.
22. Updated admin form to use new mandrill wrappers for mandrill api calls (add_domain, get_domains, get_routes, etc.)
23. Added check for installed Mandrill PHP library before module can be used.
24. Added library installation instructions to README.