* Marc/ticket/12150:
[ticket/12150] Use correct license URL in prune shadow migrations file
[ticket/12150] Remove 'after' for columns from migrations file
[ticket/12150] Update schema files for prune shadow topics
[ticket/12150] Use log service instead of add_log() function
[ticket/12150] Use shorter column names for prune settings
[ticket/12150] Add functional tests for pruning shadow topics
[ticket/12150] Add missing space to query for shadow topics
[ticket/12150] Add missing prune settings variables in acp_forums
[ticket/12150] Add file and caller for pruning shadow topics
[ticket/12150] Add prune columns to schema files and migration file
[ticket/12150] Add options to acp
* Marc/ticket/10851-ascraeus:
[ticket/10851] Request index instead of logging in and out in tests
[ticket/10851] Add unit and functional tests for checking attachments
[ticket/10851] Set disallowed content to empty array if checking is disabled
* Elsensee/ticket/7707:
[ticket/7707] Fix undefined variable: perm_from
[ticket/7707] Add comma to last entry of arrays
[ticket/7707] Remove unnecessary variables
[ticket/7707] Add get_username_string() once more
[ticket/7707] Remove unnecessary variables
[ticket/7707] Add get_username_string() where possible
* paybas/ticket/12339:
[ticket/12339] removed return var
[ticket/12339] more complete params and updated _since version
[ticket/12339] Add Event core.page_header_after
* vsephpbb/ticket/12342:
[ticket/12342] Remove spinner and fix useage of ajax on memberlist
[ticket/12342] Fix the Custom Dates function in UCP Prefs Global
[ticket/12342] Fix Find a member show / hide script
[ticket/12342] Use prop() instead of attr() for boolean properties
The disallowed content defaults to a standard set of mimetype triggers by
default. If one doesn't want to check the attachments mimetype triggers then
we need to set the disallowed content to an empty array.
PHPBB3-10851
* vsephpbb/ticket/12043:
[ticket/12043] Fix order of disabled extensions in unit tests
[ticket/12043] Correct try/catch exceptions for invalid extensions
[ticket/12043] Sort Extensions by Display Name in ACP Extension mananger
* crizz0/ticket/9758:
[ticket/9758] Clickable avatar in header and renamed class for avatar-img
[ticket/9758] Remove unnessary if-question for include functions_display
[ticket/9758] Slims the line 4775 in includes/functions.php
[ticket/9758] Adds id and changes filter to fix travis CI test
[ticket/9758] Removed the needless space after first ENDIF
[ticket/9758] Adding impr. for overall_header display of avatar and username
[ticket/9758] Fixed bug in mcp_warn.php
[ticket/9758] Optimises the html code of avatar image in header
[ticket/9758] Error because of missing functions_display.php fixed
[ticket/9758] Removed useless if-conditions to include functions.php
[ticket/9758] Changes class name of new "span" in overall_header.html
[ticket/9758] Adds global template variable CURRENT_USER_AVATAR
