Merge "Setup: Move mbstring.func_overload from WebStart to Setup"

diff --combined includes/WebStart.php
index b24ff7a,d64aae0..878dd3e
--- 1/includes/WebStart.php
--- 2/includes/WebStart.php
+++ b/includes/WebStart.php
@@@ -25,15 -25,18 +25,11 @@@
   * @file
   */
  
- if ( ini_get( 'mbstring.func_overload' ) ) {
-       die( 'MediaWiki does not support installations where mbstring.func_overload is non-zero.' );
- }
- 
  # T17461: Make IE8 turn off content sniffing. Everybody else should ignore this
  # We're adding it here so that it's *always* set, even for alternate entry
  # points and when $wgOut gets disabled or overridden.
  header( 'X-Content-Type-Options: nosniff' );
  
 -/**
 - * @var float Request start time as fractional seconds since epoch
 - * @deprecated since 1.25; use $_SERVER['REQUEST_TIME_FLOAT'] or
 - *   WebRequest::getElapsedTime() instead.
 - */
 -$wgRequestTime = $_SERVER['REQUEST_TIME_FLOAT'];
 -
  # Valid web server entry point, enable includes.
  # Please don't move this line to includes/Defines.php. This line essentially
  # defines a valid entry point. If you put it in includes/Defines.php, then