Implemented FR #65917 (getallheaders() is not supported by the built-in...)

- Implemented apache_request_headers() and getallheaders() alias in CLI server
- Implemented apache_response_headers() in CLI server using FastCGI code
Merge branch 'master' of https://github.com/php/php-src into expect
expect clean
arghhh
Merge branch 'master' of http://github.com/krakjoe/php-src into expect
Merge branch 'master' of http://github.com/krakjoe/php-src into expect
compiled reason + test
tests missing :s
cs
tidy/better
...
improve exception handling, add test for custom exception
Merge branch 'CLIGetAllHeaders' of https://github.com/TazeTSchnitzel/php-src
Merge branch 'expect' of https://github.com/krakjoe/php-src