Merge Zend Optimizer+

git-subtree-dir: ext/opcache
git-subtree-mainline: b1dbfb73571b051fef055dc371e05163cf73eb8b
git-subtree-split: 8d35170c5fe9b9c0c864b7a6c4dc6b0149809569
Merge branch 'master' of sapi/phpdbg into PHP-5.6
Including phpdbg.
Merge branch 'master' of sapi/phpdbg into PHP-5.6
credits file for phpdbg
credits file for phpdbg
Added breaking upon fatal-ish error
Merge branch 'master' of sapi/phpdbg into PHP-5.6
Fixed credits in phpdbg.* files
Merge branch 'PHP-5.6'
Merge branch 'PHP-5.6' of https://git.php.net/repository/php-src into PHP-5.6

* 'PHP-5.6' of https://git.php.net/repository/php-src:
  Fixed credits in phpdbg.* files
  Added breaking upon fatal-ish error
  credits file for phpdbg
  Fixed credits in phpdbg.* files
  reformat
  credits file
Merge branch 'master' of sapi/phpdbg into PHP-5.6

 merge is necessary,
Fixed #18
Errors not displaying in some configurations
Merge branch 'PHP-5.6'
fixed incompatible pointer in phpdbg on win64
Merge branch 'PHP-5.6'

* PHP-5.6:
  fixed incompatible pointer in phpdbg on win64
fix c89 compat
Merge branch 'PHP-5.6'

* PHP-5.6:
  fix c89 compat
update version output
Merge branch 'PHP-5.6'

* PHP-5.6:
  update version output
Bump year