Moved all file-related functions from BasicStor into StoredFile class.

Got rid of all the stuff related to GUNID hex-to-int conversion.
Commented out lots of functions that are either not in use or will
no longer work.

Pypo: made things more generic and pluggable, added documentation.
Added the PHP scripts to serve the right info back to pypo.

utils/restore.php

@@ -70,7 +70,7 @@ function ls_restore_restoreObject($obj, /*$parid,*/ $reallyInsert=TRUE){
                     "gunid" => $obj['gunid'],
                     "filetype" => strtolower($obj['type'])
                 );
-                $r = $bs->bsPutFile($values);
+                $r = StoredFile::Insert($values);
                 ls_restore_checkErr($r, __LINE__);
             }
         break;