Plugins with classes that extend Managed_DataObject get better code reuse

The switch to having a function in Managed_DataObject is now being applied
to plugins which can use this as well.

There are some plugins that still use Memcached_DataObject, but these will
be taken care of later.

plugins/ModLog/ModLog.php

@@ -55,20 +55,6 @@ class ModLog extends Managed_DataObject
     public $grant;        // 1 = grant, 0 = revoke
     public $created;      // datetime
 
-    /**
-     * Get an instance by key
-     *
-     * @param string $k Key to use to lookup (usually 'user_id' for this class)
-     * @param mixed  $v Value to lookup
-     *
-     * @return TagSub object found, or null for no hits
-     *
-     */
-    function staticGet($k, $v=null)
-    {
-        return Managed_DataObject::staticGet('ModLog', $k, $v);
-    }
-
     /**
      * Get an instance by compound key
      *