Merge branch 'PHP-7.0' into PHP-7.1

diff --cc NEWS
index 3b8c30efea97a383acb92505309e7631ffdcaf7f,c20abb5ee7cd11492226ffa0c14a57a601664ef6..ba54c56123e5c0a49ba91cb5ed573a0d9417ec5f
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -30,7 -16,13 +30,8 @@@ PH
    . Fixed bug #73272 (imagescale() is not affected by, but affects
      imagesetinterpolation()). (cmb)
    . Fixed bug #73279 (Integer overflow in gdImageScaleBilinearPalette()). (cmb)
+   . Fixed bug #73280 (Stack Buffer Overflow in GD dynamicGetbuf). (cmb)
  
 -- phpdbg:
 -  . Properly allow for stdin input from a file. (Bob)
 -  . Add -s command line option / stdin command for reading script from stdin.
 -    (Bob)
 -
  - Session:
    . Fixed bug #73273 (session_unset() empties values from all variables in which
      is $_session stored). (Nikita)