fixes #3220, #3221 finally

nother go on #3220, #3221

hopfully fixes #3220, #3221

Initialize/destroy hook lists implicitly.

- don't set php_errormsg on errors that will cause a zend_bailout().
using zend_hash_update() can make things worse in this situation.
- new function php_register_pre_request_shutdown(). th

- don't set php_errormsg on errors that will cause a zend_bailout().
using zend_hash_update() can make things worse in this situation.
- new function php_register_pre_request_shutdown(). this way modules
can register callbacks that will be called as soon as execution of
the script is done but *before* any cleanup (global symbol_table etc)
has taken place.

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@- Added implicit_flush INI directive (Zeev)

Happy Y2K patch! Happy new year (or the new millennium, depending on whether
you start counting at 0 or 1).

Change ALLOC_ZVAL() semantics

namespace protection

- Move more stuff to ALLOC_ZVAL(). We need to add those FREE_ZVAL()'s now.

@- Fixed a bug in ODBC error reporting (Zeev)
@- Added PHP_Logo_GUID() and Zend_Logo_GUID() functions, that return the GUIDs
@ of the PHP and Zend logos used in phpinfo() (Zeev)

php3 -> php prefix work

We're using ZVAL's now.

libzend -> Zend

- Make Win32 compile again

- Made PHP_VERSION and PHP_OS work again
- More php3_ cleanup
@- Restored the PHP_VERSION and PHP_OS constants (Zeev)

More php3_ annihilation

More php3_ annihilation

- Implement ability to turn off support for call-time pass by reference

(return_one) removed.
(OnChangeMemoryLimit) Only defined if MEMORY_LIMIT is defined.

Added date/time stamping to PHP error log file. Idea credit goes
to Joey.
@ Added date/time stamping to PHP error log file. (Andrei, Joey)

Postpone the execution of post request startup handlers until the symbol_table is populated

Disable global lock for now. We will have to find a way to test subsystems
for thread-safety, and lock them appropiately, if they aren't thread-safe.

Provide basis for shared libraries/dlls to contain internal extensions

Fix some warnings