[ticket/11663] Make generate_text_for_storage return the errors.

generate_text_for_storage does not return anything, all returned values are outputted using the parameters so this uses the returned value with the same idea as many C language functions where the returned value is if all went well or not and if it didn't what went wrong.

PHPBB3-11663
[ticket/11663] Add the doc block about the return value.

generate_text_for_storage does not return anything, all returned values are outputted using the parameters so this uses the returned value with the same idea as many C language functions where the returned value is if all went well or not and if it didn't what went wrong.

PHPBB3-11663
[ticket/11663] Add the doc block about the parameters.

PHPBB3-11663
[ticket/11924] Bring layout of events.md to one style

PHPBB3-11924
[ticket/11924] Add script to export events.md with wiki markup

PHPBB3-11924
[ticket/11924] Add version info of template events to events.md

PHPBB3-11924
[ticket/11924] Reduce unneccessary load

PHPBB3-11924
[ticket/11924] Add option to export php event list

PHPBB3-11924
[ticket/11924] Fix some minor issues with the php event docs

PHPBB3-11924
[ticket/11924] Remove duplicated code

PHPBB3-11924
[ticket/11280] Prevent duplicate entry in forums_track table.
Enforcing a time limit prevents all rows from being selected, thus a new row
is inserted resulting in a duplicate entry.

PHPBB3-11280
[ticket/11031] Fix container construction and missing objects

PHPBB3-11031
[ticket/11031] Fix conversion of topic_replies to topic_posts

PHPBB3-11031
[ticket/11746] Add "admin activation required" notification.

PHPBB3-11746
[ticket/11031] Update extension group names after converting them

PHPBB3-11031
[ticket/11031] Correctly set topic and post visibility

PHPBB3-11031
[ticket/11031] Fix missing variable lang_file from code conversion

PHPBB3-11031
[ticket/11746] Delete the notification after user is approved & fix language.

PHPBB3-11746
[ticket/11924] Do not use globals :(

PHPBB3-11924
[ticket/11957] Viewport meta

PHPBB3-11957