Fix test with opcache/zts dependent output

Refcount depends on whether array is immutablized and string is
interned.
update the GIT-RULES with the 5.6 and the release branches
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  update the GIT-RULES with the 5.6 and the release branches
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  update the GIT-RULES with the 5.6 and the release branches
Merge branch 'PHP-5.6'

* PHP-5.6:
  update the GIT-RULES with the 5.6 and the release branches
Fix mbstring overloads in zts
Fix zend_highlight functionality I broke

Magic consts are not supposed to be highlighted as keywords.