Elgg/Elgg — pull request #385 by mrclay (2012-09-17 21:59:55+00:00)
Title: Fixes 4861: Defer full is_callable check until just before use

...allowing lazy-load for static method callbacks.
Allow full range of callable types in notification and web service handlers.
Document requirement that PAM handler must be global function.
Alter URL for volatile extender types (fixed typo allowing intended alteration).