Bumped version to 0.5.9.

Author: jbtronics

inc/config_defaults.php

@@ -223,7 +223,7 @@
 
 // system version: this must be increased for every release(-candidate)!
 // IMPORTANT: please note that (for example) "0.3.0" is a HIGHER (!) version than "0.3.0.RC5".
-$config['system']['version']                            = '0.5.8';  // examples: '0.2.2' or '0.2.2.RC2' (see SystemVersion.php)
+$config['system']['version']                            = '0.5.9';  // examples: '0.2.2' or '0.2.2.RC2' (see SystemVersion.php)
 
 // the version of the latest config style. Increase this for one if we need an update for the user's config.php (see also updates/config_update_steps.php)
 $config['system']['latest_config_version']              = 2; // only increase for one!