Changing template classes prefixes from phpbb_template to phpbb_style (for classes that will work with styles) or phpbb_style_template (for classes that are specific to templates)
PHPBB3-10632
The template stream filter no longer depends on the $config global.
Instead it uses a 'allow_php' param that is passed via
stream_bucket_append's last argument.
Tests also adjusted.
PHPBB3-9726