[libxml] Unit test for libxml_disable_entity_loader()

Summary:
Test to make sure libxml_disable_entity_loader() is behaving.
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  [libxml] Unit test for libxml_disable_entity_loader()
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  [libxml] Unit test for libxml_disable_entity_loader()
Merge branch 'PHP-5.6'

* PHP-5.6:
  [libxml] Unit test for libxml_disable_entity_loader()
fixed the 'p' modifier when %p is used
revamp mysqlnd, mysqli, mysql and pdo_mysql
Merge remote-tracking branch 'origin/master' into str_size_and_int64
revamped ext/shmop
Fixed ADD_INTERNED_STRING() logic to support strings that are already interned. (Terry)
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Fixed ADD_INTERNED_STRING() logic to support strings that are already interned. (Terry)
Merge branch 'PHP-5.6'

* PHP-5.6:
  Fixed ADD_INTERNED_STRING() logic to support strings that are already interned. (Terry)
added testcase from bug #65371
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  added testcase from bug #65371
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  added testcase from bug #65371
Merge branch 'PHP-5.6'

* PHP-5.6:
  added testcase from bug #65371
fixed EOL in the test
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  fixed EOL in the test
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  fixed EOL in the test
Merge branch 'PHP-5.6'

* PHP-5.6:
  fixed EOL in the test
Merge remote-tracking branch 'origin/master' into str_size_and_int64