enable gmp for tests
Cleanup ZEND_MODULE_API_NO => 20050922
Merge branch 'PHP-5.3' into PHP-5.4

* PHP-5.3:
  Cleanup ZEND_MODULE_API_NO => 20050922
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Cleanup ZEND_MODULE_API_NO => 20050922
Merge branch 'PHP-5.5' of https://git.php.net/push/php-src into PHP-5.5

* 'PHP-5.5' of https://git.php.net/push/php-src:
  enable gmp for tests
add --enable-debug for travis
separate travis builds for TS and NTS
fix travis.yml, also move the REPORT_EXIT_STATUS to the global section
put this test back to XFAIL, as it was before, since it is still leaking memory
travis should be testing both with and without --enable-debug
also run a travis node for the combination of --enable-debug and --enable-maintainer-zts
make the travis build jobs a bit more explicit