Rsvp 2.7

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On Jan 1, 2016 version 2.2 of this add-on was released to address an exploitable SQL injection vulnerability. If you are still using a version of this add-on which is below 2.2 or released before Jan 1, 2016 then it is essential that you update to the latest version of the add-on as soon as possible to fix this security issue. If you have any further questions, please ask.
Rsvp v2.7 changes:

Added Options page. The RSVP list shown in the message can now be sorted by RSVP time.
Rsvp v2.6 changes:

1) Added RSVP Remove link in Thread Tools.
2) Added RSVP List.
Rsvp v2.5 changes:

Fixed issue where removing only RSVP caused server error.
Rsvp v2.4 changes:

Fixed formatting issue when member deletes a RSVP.
Rsvp v2.3 changes:

Updated Custom BB Code HTML Replacement.
Rsvp v2.2 changes:

Now using prepared statements.
RSVP v2.1 changes:

Added RSVP Expire Date feature.
Rsvp v2.0 changes:

Updated Template Modification code. Now admins and moderators can see the RSVP add link on all threads.
Rsvp v1.9 changes:

Fixed an error in the Install.php file.