Fixed Bug #64578
Merge branch 'PHP-5.3' into PHP-5.4
Fixed bug #64578 (debug_backtrace in set_error_handler corrupts zend heap: segfault)
Merge branch 'PHP-5.3' into PHP-5.4
Use 5.4 specifical warnnig & Update NEWs
Merge branch 'PHP-5.4' into PHP-5.5
Update NEWs