PDO overloads fix, converting DB values to PHP types

git-tfs-id: [http://falcon:8080/tfs/Projects]$/Phalanger/Main;C3888
SimpleXMLElement Create from attribute fix

git-tfs-id: [http://falcon:8080/tfs/Projects]$/Phalanger/Main;C3889
code maintenance

git-tfs-id: [http://falcon:8080/tfs/Projects]$/Phalanger/Main;C3890