Merge branch 'PHP-5.6' into PHP-7.0

Merge branch 'PHP-5.6' into PHP-7.0

* PHP-5.6: (24 commits)
  Update NEWS
  BLock test with memory leak
  fix tests
  Fix TSRM build
  Fix bug #72850 - integer overflow in uuencode
  Fixed bug #72849 - integer overflow in urlencode
  Fix bug #72848 - integer overflow in quoted_printable_encode caused heap corruption
  Fix bug #72838 - 	Integer overflow lead to heap corruption in sql_regcase
  Fix bug #72837 - integer overflow in bzdecompress caused heap corruption
  Fix bug #72836 - integer overflow in base64_decode caused heap corruption
  Fix for bug #72807 - do not produce strings with negative length
  Fix for bug #72790 and bug #72799
  Fix bug #72730 - imagegammacorrect allows arbitrary write access
  Fix bug#72697 - select_colors write out-of-bounds
  Fixed bug #72627: Memory Leakage In exif_process_IFD_in_TIFF
  Fix bug #72750: wddx_deserialize null dereference
  Fix bug #72771: ftps:// opendir wrapper is vulnerable to protocol downgrade attack
  Improve fix for #72663
  Fix bug #70436: Use After Free Vulnerability in unserialize()
  Fix bug #72749: wddx_deserialize allows illegal memory access
  ...

Conflicts:
	Zend/zend_API.h
	ext/bz2/bz2.c
	ext/curl/interface.c
	ext/ereg/ereg.c
	ext/exif/exif.c
	ext/gd/gd.c
	ext/gd/tests/imagetruecolortopalette_error3.phpt
	ext/gd/tests/imagetruecolortopalette_error4.phpt
	ext/session/session.c
	ext/snmp/snmp.c
	ext/standard/base64.c
	ext/standard/ftp_fopen_wrapper.c
	ext/standard/quot_print.c
	ext/standard/url.c
	ext/standard/uuencode.c
	ext/standard/var.c
	ext/standard/var_unserializer.c
	ext/standard/var_unserializer.re
	ext/wddx/tests/bug72790.phpt
	ext/wddx/tests/bug72799.phpt
	ext/wddx/wddx.c
	sapi/cli/generate_mime_type_map.php