Update NEWS
See bug #67635

Improve previous fix:
- also rely on pkg-config for systemd < 209
- always check for header
- comments
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  See bug #67635
Merge branch 'PHP-5.6'

* PHP-5.6:
  See bug #67635
Enable $ replacement in exif, ldap, pdo_pgsql and tidy
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Enable $ replacement in exif, ldap, pdo_pgsql and tidy
  Update NEWS
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Enable $ replacement in exif, ldap, pdo_pgsql and tidy
  Update NEWS
Merge branch 'PHP-5.6'

* PHP-5.6:
  Enable $ replacement in exif, ldap, pdo_pgsql and tidy
  Update NEWS
force atoll macro usage on windows
Merge branch 'PHP-5.6'

* PHP-5.6:
  force atoll macro usage on windows
fix nmake snap when ext name is different in target dll
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  fix nmake snap when ext name is different in target dll
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  fix nmake snap when ext name is different in target dll
Merge branch 'PHP-5.6'

* PHP-5.6:
  fix nmake snap when ext name is different in target dll
Fixed support for constant arrays in context of "const" statement (Zend/tests/constant_expressions_arrays.phpt failed when opcache.protect_memort was set)
Merge branch 'PHP-5.6'

* PHP-5.6:
  Fixed support for constant arrays in context of "const" statement (Zend/tests/constant_expressions_arrays.phpt failed when opcache.protect_memort was set)
Fixed crash on self-referencing constant expression (part of a constant AST)
Merge branch 'PHP-5.6'

* PHP-5.6:
  Fixed crash on self-referencing constant expression (part of a constant AST)
Removed second zval_copy_ctor()
Merge branch 'PHP-5.6'

* PHP-5.6:
  Removed second zval_copy_ctor()