Optimized defaut Content-Type HTTP header processing

* implement new output API, fixing some bugs and implementing some feature
requests--let's see what I can dig out of the bugtracker for NEWS--
and while crossing the road:
* implem

* implement new output API, fixing some bugs and implementing some feature
requests--let's see what I can dig out of the bugtracker for NEWS--
and while crossing the road:
* implemented new zlib API
* fixed up ext/tidy (what was "s&" in zend_parse_parameters() supposed to do?)

Thanks to Jani and Felipe for pioneering.

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- Interned string related callbacks moved turned from compiler_globals into real globals
- Updated API version number

Removed safe_mode
* Removed ini options, safe_mode*
* Removed --enable-safe-mode --with-exec-dir configure options on Unix
* Updated extensions, SAPI's and core
* php_get_current_

Removed safe_mode
* Removed ini options, safe_mode*
* Removed --enable-safe-mode --with-exec-dir configure options on Unix
* Updated extensions, SAPI's and core
* php_get_current_user() is now declared in main.c, thrus no need to include safe_mode.h anymore

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- Removed allow_call_time_pass_reference (Pierrick)

Add DTrace probes

Remove highlight.bg, it was removed in the old trunk and its not referenced in zend_highlight.c, meaning its not even implemented correctly in 5.3.

Removed register_globals

Added concept of interned strings. All strings constants known at compile time are allocated in a single copy and never changed.

Changed the structure of op_array.opcodes. The constant values are moved from opcode operands into a separate literal table

Removed register_long_arrays ini option (and $HTTP_SESSION_VARS from ext/session)

PHP_OS is now always WINNT on Windows, since we don't support anything prior to XP SP2

Remove a couple TSRMLS_FETCH() calls around ext/main/sapi

Removed y2k_compliance ini option, making it "always" enabled internally
- The only reference to y2k_compliance was in php_std_date(). Browsers thats not compatable have a marketshare of 0.01% i

Removed y2k_compliance ini option, making it "always" enabled internally
- The only reference to y2k_compliance was in php_std_date(). Browsers thats not compatable have a marketshare of 0.01% if they even are in use today

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* Changed the way removed ini directives are shown so its easier to add new ones
* Removed define_syslog_variables and its associated functions

- Reverted r296062 and r296065

- Fix conflict

MFH: Improved / fixed output buffering (Michael Wallner)

Fix for bug #23229 (syslog function truncates messages): remove the hard-coded
500 character error message limit imposed when using error_log=syslog.

- [DOC] #45986, bad file descriptor warning when rename is used with invalid path, add php_win32_docref2_from_error to display system error for non posix api

- prevent possible crash when error/warnings are raised during startup (like deprecated features), 5.3+ only

sed -i "s#1997-2009#1997-2010#g" **/*.c **/*.h **/*.php

- Forgotten patch for trunk
- Fixed stdin filename in error messages

- Fixed bug #49935 (Deprecated warnings make "make test" to fail)

- Nuke ws