Weed out all BoundsChecker-found bugs

Several minor fixes

* Finalizing the PHP version of SAPI. Support POST and cookies among other things.
* Fully implement ISAPI support - POST and cookies among other things.
* Almost completely rewrote phpinfo(

* Finalizing the PHP version of SAPI. Support POST and cookies among other things.
* Fully implement ISAPI support - POST and cookies among other things.
* Almost completely rewrote phpinfo(). Allow modules to easily display their
information in phpinfo() without modifying phpinfo() itself (prototype for
the module info function was changed, thus the large amount of updated module
files).
* Initial extended SAPI support for Apache, completely untested.
* CGI now uses SAPI fully as well.

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* Get output buffering to work again
* Warn about adding header information after headers are sent
* Several fixes

Fixes

Get CGI to work with the new headers code.
Now Apache is the only interface that doesn't use it.

ISAPI WORKS!

Added initial headers support in SAPI
*untested*
It definitely broke the thread-safe CGI, it may have broken other stuff as well.

Move path_info to the SAPI structure

- Make ISAPI hook in as an extension too.
- Some work on moving stuff to SAPI.

Remove redundant code

Additional generalization of the INI mechanism. Avoid needing specialized
message handlers in 99% of the cases.

A step towards generalizing the INI mechanism even more

- Small startup fix.

* Get rid of the memory leak messages in case of fatal errors or exit()
* .dsp fixes
* Minor fixes

* Small startup fix
* Fix min() and max()

* Get the Apache module to compile again
* Get rid of php3_rqst, use SG(server_context) instead (there's still Apache-specific code,
but it nuked a global)

* Plenty of thread safety and Win32 work.
* Changed PHP4 to compile as a DLL, both ISAPI and the the CGI run with the same DLL.
* Switched to using the DLL runtime library under Win32. PHP w

* Plenty of thread safety and Win32 work.
* Changed PHP4 to compile as a DLL, both ISAPI and the the CGI run with the same DLL.
* Switched to using the DLL runtime library under Win32. PHP will NOT work if
compiled against the static library!
* Removed yesterday's php4libts project (with php4dllts, it's obsolete).

This *does* affect thread-unsafe Windows as well - the thread unsafe CGI is also
dependant on the thread-unsafe DLL.

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-More

* Fix a couple of thread safety issues
* Add initial ISAPI support. Very very experimental.
* In the thread safe version, generate php4 as a library so that we can link it with both
php.

* Fix a couple of thread safety issues
* Add initial ISAPI support. Very very experimental.
* In the thread safe version, generate php4 as a library so that we can link it with both
php.exe and the ISAPI dll. We should probably consider doing that under all circumstances,
under UNIX as well.

The thread-unsafe version *should* be unharmed.

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Small fixes

We'd have to find a different way of allowing timeouts in Win32

A lot of cleanups... Removed old thread-safe code and other redundant code and files

Remove redundant code

Thread-safe header_is_being_sent