Mistercash is Bancontact now

These changes are cosmetically, because Mollie still uses the old name internally.

src/molliemistercash.php

@@ -8,7 +8,7 @@ function molliemistercash_config() {
 	$config = array_merge($config, array(
 		'FriendlyName' => array(
 			'Type' => 'System',
-			'Value'=> 'Mollie Mistercash'
+			'Value'=> 'Mollie Bancontact'
 		)
 	));