Fixed bug #68545 NULL pointer dereference in unserialize.c
move the test to the right place
update NEWS
Fix undefined behaviour in strnatcmp
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fix undefined behaviour in strnatcmp
  update NEWS
  move the test to the right place
  Fixed bug #68545 NULL pointer dereference in unserialize.c

Conflicts:
	NEWS
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Fix undefined behaviour in strnatcmp
  update NEWS
  move the test to the right place
  Fixed bug #68545 NULL pointer dereference in unserialize.c