MidgardConfigFile

	Hi!

I added new midgard-apache2 configuration directive ( CVS HEAD ) :
http://www.nemein.com/people/piotras/midgardconfigfile.html

Now configuration file is used by :
	* midgard-php with php-cli
	* midgard-schema
	* midgard-query
	* midgard-apache2 

midgard-query needs love but it's simple tool to run any SQL queries without need 
to pass MySQL admin or password in command line. 

midgard-query configname query

There is also new midgard internal class MidgardConfig and we should remove midgard 
structure usage after 1.8 is out. 
Briefly,  we will be able to use objects for midgard connections ( for example ) with simple API :

GObject *connection = g_object_new(MIDGARD_TYPE_CONNECTION, NULL);
GObject *config = g_object_new(MIDGARD_TYPE_CONFIG, NULL);

midgard_connection_init(connection, config);

Piotras