add more detail to study group definitions and email token

booking.emails.inc

@@ -328,12 +328,12 @@ function _booking_custom_email($nid, $email_type, $sender = 'contact') {
 							'!email' =>  variable_get('booking_logistics_email', variable_get('site_mail', ini_get('sendmail_from')))
 						));
 		// Test email attachments with dummy file
-		$attachment = array(
-			'filecontent' => file_get_contents(DRUPAL_ROOT . '/README.txt'),
-			'filename' => 'test.txt',
-			'filemime' => 'text/plain',
-		);		
-		$params['attachment'] = $attachment;					
+		//$attachment = array(
+		//	'filecontent' => file_get_contents(DRUPAL_ROOT . '/README.txt'),
+		//	'filename' => 'test.txt',
+		//	'filemime' => 'text/plain',
+		//);		
+		//$params['attachment'] = $attachment;					
 	}
 
 	//load the node matching this id