Notification messages plugin for Elgg

This plugins provides useful subjects for email messages, when new content is created, and replies or comments are made. It uses html_email_handler with object:notifications hook activated, and/or advanced_notifications plugin enabled.

Notes :

• This plugin is inspired by former plugin notification_messages for Elgg 1.6 (discontinued due to API changes)
• Developped after an initial PR on html_email_handler to add a hook to change subject
• (same as notifymessage core hook, but for subjects)
• Used hook is implemented in advanced_notifications (by Coldtrick) / and this html_email_handler version
• Also built after careful reading of notification_subjects by Matt Backet

HISTORY :

1.12.2-rc2 : 20180125 - Avoid duplicate messages for comments (use only hooks to send emails)

1.12.2-rc1 : 20171103

1.12.2-beta : 20171031 - Better settings

• Added several settings to control recipients and notification events :
  • notify owner
  • notify self
  • notify participants
  • notifify top container subscribers
• Rewrite some helper functions

1.12.1 : 20171004 - Better settings and explanations

• Adding registered notifications events settings and support
• Added list of registered hooks and events related to notifications control

1.12.0-dev : 20160311 - Updating to Elgg 1.12

0.3 : 20140326 - Forum replies and generic_comment support

0.2 : 201403.. - First functionnal version (new objects)

0.1 : 20140317 - Initial version