Fix bug #66182 	exit in stream filter produces segfault

Unfortunately, a segv caused by exit cannot be tested reliably.
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fix bug #66182 	exit in stream filter produces segfault
NEWS
Fix Bug #66736 	fpassthru broken
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fix Bug #66736 	fpassthru broken
NEWS
cleanup NEWS
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  cleanup NEWS
Fixed bug #66084 simplexml_load_string() mangles empty node name
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fixed bug #66084 simplexml_load_string() mangles empty node name
updated NEWS
Merge branch 'PHP-5.5' of https://github.com/php/php-src into PHP-5.5