fix the singleton and factory methods for a). php 4.0.6 (where include_once might return false) b). to use references and not copy so many objects
fix the singleton and factory methods for
a). php 4.0.6 (where include_once might return false)
b). to use references and not copy so many objects


git-svn-id: 4b064e69dc630d28214c1e1442d27300cccf8e9a@61654 c90b9560-bf6c-de11-be94-00142212c4b1

DQNEO/PEAR_Exception