The addition of "core_" that was used until now would require additional
avatar drivers (e.g. in extensions) to also include that in their class
name which would be incorrect.
PHPBB3-10018
Fixing avatar deletion in the UCP and ACP, and stubbing the ACP
configuration page. I'll admit I kind of got caught carried away, so
this really should be a couple separate commits.
PHPBB3-10018
Various small changes based on feedback from nn-
* Renaming $php_ext to $phpEx
* Fixing copyright years
* Explain $ignore_config
* Explain Regex
* Copypasta package error
* rename get_singleton
PHPBB3-10018
This stubs out the avatar form fields and how form processing will
occur. Form processing is not yet implemented, but shouldn't be too
hard. After this I will refactor/duplicate some of the logic for the
ACP.
PHPBB3-10018
