- replaced mysql_query() with query_appdb()

- removed opendb()
- removed query_userdb()
- removed error handling from the code as it is done with query_appdb()

TODO

@@ -11,13 +11,6 @@ RELATED TODO: how to handle deleting accounts that have comments?  go through
 and assign them to a special account number that prints (account deleted due 
 to inactivity)
 
-# replace all mysql_query() by query_appdb() (available from include/db.php).
-When it's done we have to remove opendb() function call in incl.php and definition 
-in util.php as query_appdb already does the connection when needed.
-
-# we have to check if we really need to separate user database from appdb database
-(as seen in the config file and include/db.php)
-
 # when deleting an application we should delete linked entries (screenshots, comments, etc.)
 
 # when deleting a screenshot we should delete the image file as well
@@ -43,4 +36,4 @@ In particular globally registered vars should be replaced by superglobals (nearl
 
 # add new table for maintainer ratings. fields: userid, appId versionId ,rating, wineversion, distro, source/package
 
-# add user management
+# add user management