Update: To version Apache-2.4.18 and PHP-5.6-17.

Update: To version Apache-2.4.18 and PHP-5.6-17.

Please DO NOT MERGE THIS, this commit is for testing and optimizations.

- Apache update to 2.4.18 requires PCRE with version 8.38 which has been also updated.
- PCRE-8.38 should have included all seurity patches from 8.37 --> http://www.pcre.org/original/changelog.txt .
- Changed bzip2 position cause new pcre version neededs bzlib.h.
- Added Apr-Util-1.5.4 which is required by new Apache version.
- Apr-Util uses currently sqlite3 since compiling with BDB support without the new BDB-6* version needs long compilation time cause Apr-Util searches for every version from 6.8 backwards until the current available 4.4 version.
- Added Apr-1.5.2 which is required by Apr-Util.
- Added both Apr-*version into Apache LFS and ROOTFILE.
- Added new mpm.conf for Apache Multi-Processing Modules and deleted old entries from httpd.conf.
- Added "--enable-mpms-shared=all" in Apache LFS so MPM mode should be changeable on the fly by editing loadmodule.conf.
- Enabled '--enable-mods-shared="all cgi' so fastcgi should be available too.
- Disable server and version signatur sending in httpd.conf.
- Added Modsecurity as an Addon, with outcommented Apache config parameters under loadmodules.conf and httpd.conf.
- Modsecurities install.sh will activate the entries in Apache configs, uninstall.sh will also deactivate them.
- Modsecurity default configuration from the source package are used.
- Added ICU support for PHP. Positioned ICU before boost cause newer boost versions might become also ICU support?
- Added new PHP module intl and deleted idn cause it has been merged into intl --> http://php.net/manual/de/ref.intl.idn.php, new modul will also be build like log in PHP LFS and ROOTFILE.
- Added new php.ini.
- Added zend optimizer extension into PHP.
- FPM switch is activated in php.ini and should use nobody privileges per default.
- Disabled 'allow_url_fopen' and 'expose_php' in php.ini.

Signed-off-by: Erik Kapfer <erik.kapfer@ipfire.org>