Merge branch 'PHP-5.6' into PHP-7.0

* PHP-5.6:
Happy new year (Update copyright to 2016)

Happy new year (Update copyright to 2016)

Merge branch 'PHP-5.6'

* PHP-5.6:
Fix #67131: setcookie() conditional for empty values not met

Resolved conflicts:
ext/standard/head.c

Fix #67131: setcookie() conditional for empty values not met

PHP applies a workaround for old MSIE where setting an empty cookie value would
not delete the cookie. This workaround is onl

Fix #67131: setcookie() conditional for empty values not met

PHP applies a workaround for old MSIE where setting an empty cookie value would
not delete the cookie. This workaround is only triggered if an empty string (or
a value that converts to an empty string) is actually given as $value parameter
of setcookie. If the $value parameter is omitted, an empty cookie value is
sent. This commit fixes the inconsistent behavior.

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Fixed bug #70295 (Segmentation fault with setrawcookie)

Use zend_string in setcookie (save value reallocated)

Use ZSTR_ API to access zend_string elements (this is just renaming without semantick changes).

prohibit empty cookie names for setcookie()

Removed erroneous condition

This condition is always false. Furthermore headers_list() is
documented to always return an array.

fix BC break in headers_list

follow up fix for headers sent, checking a reference would be always true as well

fix condition

the headers member is allocated together with the SAPI globals struct

bump year

Bump year

first shot remove TSRMLS_* things

fix string is optional, set default length, thanks laruence

Fix type of string length in zpp call

Fix 23 failed tests (detected on bigendian)

fix datatype mismatches

s/PHP 5/PHP 7/

fix signature

's' works with size_t round 4

first show to make 's' work with size_t

fixed several long vs zend_long casts

master renames phase 1

yet more fixes to zpp