Elgg/Elgg — pull request #6793 by jeabakker (2014-04-25 14:45:29+00:00)
Title: change(core): better registration of usersettings handlers

This will allow plugin developers to replace specific parts of the user
settings action without redoing part of the core actions.

For example:
If I wanted to change the password policies. I had to unregister the default save handler and re-register all but the password handler.

This way I only have to unregister the password handler