Merge branch 'PHP-5.5.32' into PHP-5.6.18

* PHP-5.5.32:
  Fixed bug #71488: Stack overflow when decompressing tar archives
  update NEWS
  add missing headers for SIZE_MAX
  backport the escapeshell* functions hardening branch
  add tests
  Fix bug #71459 - Integer overflow in iptcembed()
  Fixed bug #71323 - Output of stream_get_meta_data can be falsified by its input
  Fix bug #71391: NULL Pointer Dereference in phar_tar_setupmetadata()
  Fix bug #71335: Type Confusion in WDDX Packet Deserialization
  Fix bug #71354 - remove UMR when size is 0

diff --cc ext/phar/phar_object.c
Simple merge

diff --cc ext/phar/tar.c
Simple merge

diff --cc ext/standard/basic_functions.c
Simple merge

diff --cc ext/standard/exec.c
Simple merge

diff --cc ext/standard/exec.h
Simple merge

diff --cc ext/standard/iptc.c
Simple merge

diff --cc ext/standard/streamsfuncs.c
Simple merge

diff --cc ext/standard/tests/streams/stream_get_meta_data_socket_basic.phpt
Simple merge

diff --cc ext/standard/tests/streams/stream_get_meta_data_socket_variation1.phpt
Simple merge

diff --cc ext/standard/tests/streams/stream_get_meta_data_socket_variation2.phpt
Simple merge

diff --cc ext/standard/tests/streams/stream_get_meta_data_socket_variation3.phpt
Simple merge

diff --cc ext/standard/tests/streams/stream_get_meta_data_socket_variation4.phpt
Simple merge

diff --cc ext/wddx/wddx.c
Simple merge

diff --cc main/streams/memory.c
Simple merge