Replace direct mysql_xxx() calls with query_xxx() calls. Replace calls to mysql_insert_id()

with calls specific to the appdb or bugzilla database. Fixes a bug where a call to
mysql_insert_id() can potentially retrieve an id from either the bugzilla or appdb database,
depending on whichever database was last opened by mysql_connect().

addcomment.php

@@ -48,7 +48,7 @@ if(!empty($aClean['sBody']))
   {
     $hResult = query_parameters("SELECT * FROM appComments WHERE commentId = '?'",
                             $aClean['iThread']);
-    $oRow = mysql_fetch_object($hResult);
+    $oRow = query_fetch_object($hResult);
     if($oRow)
     {
       $mesTitle = "<b>Replying To ...</b> $oRow->subject\n";