* github-nickvergessen/ticket/12273: (55 commits)
[ticket/12273] Move $extension to constructor so the path is always set
[ticket/12273] Find events.md relative from the path not the phpbb root
[ticket/12273] Do not look in extensions docs/ and tests/ directory
[ticket/12273] Also check file for adm "Location:" events
[ticket/12273] Do not allow template events in non-html files
[ticket/12273] Fix return description
[ticket/12273] Update exporter to allow specifying an extension
[ticket/12273] Allow to filter events for extensions
[ticket/12273] Remove old parameter from function call
[ticket/12273] Fix table header for adm events
[ticket/12273] Add root path to recursive_event_filter_iterator
[ticket/12273] Fix missing classes in export_events_for_wiki.php
[ticket/12273] Use RecursiveDirectoryIterator with filter in php_exporter
[ticket/12273] Use RecursiveDirectoryIterator in md_exporter
[ticket/12273] Fix doc blocks
[ticket/12273] Do not allow 3.1-A1 for template events
[ticket/12273] Sort arguments alphabetically before exporting
[ticket/12273] Do not allow 3.1-A1 version
[ticket/12273] Update since version to 3.1.0-a* style
[ticket/12273] Update existing events
...
Since it is possible for extensions to add new user preferences to UCP,
it should be also possible to control it via ACP too
just like for build-in user preferences.
Thus, some prepend/append template events are added.
PHPBB3-12403
* paybas/ticket/12377:
[ticket/12377] Forgot to change the INCLUDEs
[ticket/12377] Renamed template files to navbar_xxx
[ticket/12377] Moved notifications to new template
[ticket/12377] Forgot empty line at the end
[ticket/12377] Move navbar(s) to new template file
* github-nickvergessen/ticket/12286:
[ticket/12286] Reword section about plurals
[ticket/12286] Fix spelling of elephant(s) in the sample
[ticket/12286] Correctly capitalize PHP
[ticket/12286] Fix nesting of ul inside li element
[ticket/12286] Add note that goto should not be used
[ticket/12286] Add section about plurals to the coding guidelines
[ticket/12286] Classes must use the name space
[ticket/12286] Remove section about utf8_normalize_nfc()
[ticket/12286] Use $request->variable() instead of request_var()
[ticket/12286] Function names should be prefixed with phpbb_
[ticket/12286] Add "Since" to template event docs
[ticket/12286] style.php and imagesets dont exist anymore
[ticket/12286] Styles have a phpbb_version and a style_version in 3.1
[ticket/12286] Use UTF8 (c) in style.cfg samples
