Added get() and set() methods to Kohana_Config for consistency

system/classes/kohana/config.php

@@ -93,6 +93,30 @@ class Kohana_Config_Core extends ArrayObject {
 		return $this->getArrayCopy();
 	}
 
+	/**
+	 * Get a variable from the configuration or return the default value.
+	 *
+	 * @param   string   array key
+	 * @param   mixed    default value
+	 * @return  mixed
+	 */
+	public function get($key, $default = NULL)
+	{
+		return $this->offsetExists($key) ? $this->offsetGet($key) : $default;
+	}
+
+	/**
+	 * Sets a value in the configuration array.
+	 *
+	 * @param   string   array key
+	 * @param   mixed    array value
+	 * @return  mixed
+	 */
+	public function set($key, $value)
+	{
+		return $this->offsetSet($key, $value);
+	}
+
 	/**
 	 * Overloads ArrayObject::offsetSet() to set the "changed" status when
 	 * modifying a configuration value.