Merge branch 'PHP-5.6' into PHP-7.0

diff --cc NEWS
index 9404084e496ea9cd324d4dd802fefff926cdbd5d,fb5a07cfbed29c09b60d42b5590d478f568f20fb..7cd76808ad43da9bac0dff1c663f161ccdcc022e
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -15,25 -14,18 +15,27 @@@ PH
      require_ssl_reuse). (Benedict Singer)
  
  - GD:
 +  . Fixed bug #72709 (imagesetstyle() causes OOB read for empty $styles). (cmb)
    . Fixed bug #66005 (imagecopy does not support 1bit transparency on truecolor
      images). (cmb)
+   . Fixed bug #72913 (imagecopy() loses single-color transparency on palette
+     images). (cmb)
  
 -- JSON:
 -  . Fixed bug #72787 (json_decode reads out of bounds). (Jakub Zelenka)
 +- IMAP:
 +  . Fixed bug #72852 (imap_mail null dereference). (Anatol)
 +
 +- Intl:
 +  . Fixed bug #65732 (grapheme_*() is not Unicode compliant on CR LF
 +    sequence). (cmb)
  
 -- MSSQL:
 -  . Fixed bug #72039 (Use of uninitialised value on mssql_guid_string). (Kalle)
 +- OCI8
 +  . Fixed invalid handle error with Implicit Result Sets. (Chris Jones)
 +  . Fixed bug #72524 (Binding null values triggers ORA-24816 error). (Chris Jones)
  
  - PDO:
 +  . Fixed bug #72788 (Invalid memory access when using persistent PDO
 +    connection). (Keyur)
 +  . Fixed bug #72791 (Memory leak in PDO persistent connection handling). (Keyur)
    . Fixed bug #60665 (call to empty() on NULL result using PDO::FETCH_LAZY
      returns false). (cmb)
  

diff --cc ext/gd/libgd/gd.c
Simple merge