Fix notices warnings

# Conflicts:
#	include/utils/utils.php

To fix strict warnings caused by PEAR HTTP_Session class: removed superseded PEAR package HTTP_Session, added up-to-date package PEAR HTTP_Session2.

fixing assigning by reference http://php.net/manual/en/language.operators.assignment.php "As of PHP 5, the new operator returns a reference automatically, so assigning the result of new by reference results in an E_DEPRECATED message in PHP 5.3 and later, and an E_STRICT message in earlier versions."