[ticket/10737] Drop subsilver2 changes.

PHPBB3-10737
[ticket/10737] Set the username as the input value instead of redirecting.

PHPBB3-10737
[ticket/10737] Load core.js and ajax.js in simple_footer.html.

PHPBB3-10737
[ticket/10737] Add loading indicator and alert box code to simple_footer.html.

PHPBB3-10737
[ticket/10737] Add config setting to disable live searches.

PHPBB3-10737
[ticket/10737] Enforce allow_live_searches setting in memberlist.php.

PHPBB3-10737
[ticket/10737] Remove loading indicator.

PHPBB3-10737
[ticket/12186] Move PM reports below post reports while installing

In mcp, move PM reports below post reports while installing.

PHPBB3-12186
[ticket/12437] Clean up redundant "clear" elements & "corners"

PHPBB3-12437
[ticket/12012] Move MS SQL server comparison into a method

PHPBB3-12012
[ticket/12273] Verify that the events are still in the named files

PHPBB3-12273
[ticket/12273] Fix some locations of existing events

PHPBB3-12273
[ticket/12273] Only check selected files

PHPBB3-12273
[ticket/12273] Verify the result of the .md file to the source

PHPBB3-12273
[ticket/12273] Test source files and compare with events.md

PHPBB3-12273
[ticket/12273] Fix method name of test and fix undefined index

PHPBB3-12273
[ticket/12273] Fix subsilver2 missing from simple_footer_after docs

PHPBB3-12273
[ticket/12273] Fix number of = in events.md

PHPBB3-12273
[ticket/12273] Add missing event documentation

PHPBB3-12273
[ticket/12273] Use array_merge instead of +=

PHPBB3-12273