License update

Win32/general patches

* Get rid of another request_info element (filename)
* CGI through Apache should work now

conv_proto *.[ch]

* 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)

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

Remove tls.[ch]

First commit of re-structuring phase one. We have started using automake in
sub-directories and started to move extension code into ext/<name>. For now,
I have moved the "standard" extensio

First commit of re-structuring phase one. We have started using automake in
sub-directories and started to move extension code into ext/<name>. For now,
I have moved the "standard" extension (which is quite a mix of everything
right now) and the GD extension into their own subdirs in ext/.
The configure script now also runs configure in the libzend directory
automatically and makes sure php4 and libzend use the same config.cache file.
To avoid running configure in libzend, use the --no-recursion option.
"make" in php4 also builds libzend now.
The Apache module doesn't compile right now, but a fix for that is
coming up.

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