Merge "Implemented a wrapper for the memcached PECL client"

diff --cc includes/AutoLoader.php
index 25e90d1,30a18bb..de31736
--- 1/includes/AutoLoader.php
--- 2/includes/AutoLoader.php
+++ b/includes/AutoLoader.php
@@@ -56,9 -56,7 +56,8 @@@ $wgAutoloadLocalClasses = array
        'DeferredUpdates' => 'includes/DeferredUpdates.php',
        'DeprecatedGlobal' => 'includes/DeprecatedGlobal.php',
        'DerivativeRequest' => 'includes/WebRequest.php',
 +      'DeviceDetection' => 'includes/DeviceDetection.php',
        'DiffHistoryBlob' => 'includes/HistoryBlob.php',
- 
        'DoubleReplacer' => 'includes/StringUtils.php',
        'DummyLinker' => 'includes/Linker.php',
        'Dump7ZipOutput' => 'includes/Export.php',