change default avatars from config vars to theme files

darcs-hash:20080611190230-84dde-78ff0d6f6c370a33aabc4f0053651b6629f85499.gz

lib/common.php

@@ -49,12 +49,7 @@ $config =
 		'license' =>
 		array('url' => 'http://creativecommons.org/licenses/by/3.0/',
 			  'title' => 'Creative Commons Attribution 3.0',
-			  'image' => 'http://i.creativecommons.org/l/by/3.0/88x31.png'),
-		'avatar' =>
-		array('default' => 
-			  array('profile' => 'theme/default/image/default-avatar-profile.png',
-					'stream' => 'theme/default/image/default-avatar-stream.png',
-					'mini' => 'theme/default/image/default-avatar-mini.png')));
+			  'image' => 'http://i.creativecommons.org/l/by/3.0/88x31.png'));
 
 $config['db'] = &PEAR::getStaticProperty('DB_DataObject','options');
 

lib/util.php

@@ -456,9 +456,7 @@ function common_default_avatar($size) {
 	static $sizenames = array(AVATAR_PROFILE_SIZE => 'profile',
 							  AVATAR_STREAM_SIZE => 'stream',
 							  AVATAR_MINI_SIZE => 'mini');
-	global $config;
-
-	return common_path($config['avatar']['default'][$sizenames[$size]]);
+	return theme_path('default-avatar-'.$sizenames[$size].'.png');
 }
 
 function common_local_url($action, $args=NULL) {