Log Message:
Update included pear pacakges and bump PKGREVISION.

Archive_Tar-1.4.0

* Add support for PHP 7
* Drop support for PHP 4
* Add visibility declarations to methods and properties

Console_Getopt-1.4.1

* Fix unit test on PHP 7 [cweiske]

Structures_Graph-1.1.1

* Fix deprecated constructor warning on PHP 7 [cweiske]