Remove expired PHP5.5 ports.

multimedia/libvpx: update 1.6.0

ABI is incompatible... or not? SONAME has changed but the removed vp10
symbols weren't actually exposed (and still aren't).

Note, FreeBSD 9.x now builds with Clang 3.4 because GCC 4.2 fails:

  vp9/encoder/x86/vp9_frame_scale_ssse3.c: In function 'eight_tap_row_ssse3':
  vp9/encoder/x86/vp9_frame_scale_ssse3.c:93: internal compiler error: in
simplify_binary_operation_1, at simplify-rtx.c:2563
  Please submit a full bug report,
  with preprocessed source if appropriate.
  See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Changes:	https://chromium.googlesource.com/webm/libvpx/+log/v1.5.0..v1.6.0
ACC
report:	https://people.freebsd.org/~jbeich/compat_reports/libvpx/1.5.0_to_1.6.0/compat_report.html

Fix integer overflow in gdImageWebpCtx and bump PORTREVISION.

PR:		213023
Submitted by:	Vladimir Krstulja <vlad-fbsd@acheronmedia.com>

Don't use extension.ini any more, and have each extension install in its
file, so the order remains the same.

Every PHP (or Zend) extension now installs its own .ini file in
/usr/local/etc/php.  A PHP extension will be automatically activated
when installed.  The order into which extensions are loaded is
automatically guessed.  In some very rare cases, the guess will be
wrong, and PHP_MOD_PRIO will need to be set.  Refer to the USES=php
section of the Porter's Handbook for more information.

Convert ports touching etc/php/extensions.ini manually, or telling the
OP to do it.

And finally, bump PORTREVISION for all php extensions.

PR:		210697
Submitted by:	mat
Sponsored by:	Absolight
Differential Revision:	https://reviews.freebsd.org/D7022

lang/php55: update 5.5.33 -> 5.5.34
converters/php55-mbstring,graphics/php55-gd: chase update; drop PORTREVISION

Changelog:	http://www.php.net/ChangeLog-5.php#5.5.34

Approved by:	ports-secteam (with hat)
Security:	https://vuxml.FreeBSD.org/freebsd/482d40cb-f9a3-11e5-92ce-002590263bf5.html
MFH:		2016Q2

multimedia/libvpx: update 1.5.0

ABI isn't compatible, so bump PORTREVISION in consumers.

Changes:	https://chromium.googlesource.com/webm/libvpx/+log/e67d45d..v1.5.0
ACC
report:	https://people.freebsd.org/~jbeich/compat_reports/libvpx/1.4.0.488_1_to_1.5.0/compat_report.html
PR:		204478
Exp-run by:	antoine
Approved by:	ashish (maintainer)

Update PHP ports:

- php5 to 5.4.42
- php55 to 5.5.26
- php56 to 5.6.10

multimedia/libvpx: update to 1.4.0

ABI isn't compatible, so bump PORTREVISION in consumers.

Changes:	https://chromium.googlesource.com/webm/libvpx/+/v1.4.0
Differential Revision:	https://reviews.freebsd.org/D2570
Exp-run by:	antoine
Approved by:	ashish, multimedia (kwm)
Approved by:	maintainer timeout (ale, dinoex; 2 weeks)

Update to 5.5.8 release.

Update freetype to 2.5.2.

Remove patch to add -I/usr/local/include in freetype-config --cflags. If
ports need extra headers they should look for them, and not get them via
a side-effect.

Freetype had a header resuffle in 2.5.1, patch ports to use the new header
style.

Thanks go to bdrewery for the two exp-runs and rakuco for helping me with
some troublesome cmake ports.

PR:		ports/184587

Stagify.

Add NO_STAGE all over the place in preparation for the staging support (cat:
graphics)

Welcome PHP 5.5!

Future steps:
- rename current php5 ports to php54
- make php55 the default one after an exp-run