Update NEWS for bug fix #62479
fix these tests so they properly clean up after themselves.
Updating NEWS with PDO change
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  fix these tests so they properly clean up after themselves.
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  fix these tests so they properly clean up after themselves.