5.4.21 now
Handle CLI server request headers case insensitively.

Fixes bug #65633 (built-in server treat some http headers as case-sensitive).
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Handle CLI server request headers case insensitively.
  5.4.21 now

Conflicts:
	configure.in
	main/php_version.h