Merge branch 'PHP-5.6' into PHP-7.0

diff --cc NEWS
index d209f23eef291d0638a1466e6516e8865e51b728,61f96093d681e0edf0f353bfc164b7f6f42de943..44959d64a8cb275638a514215ed5fd0fbc499a38
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -20,10 -18,12 +20,12 @@@ PH
  - GD:
    . Fixed bug #67325 (imagetruecolortopalette: white is duplicated in palette).
      (cmb)
+   . Fixed bug #50194 (imagettftext broken on transparent background w/o
+     alphablending). (cmb)
  
  - Mbstring:
 -  . Fixed bug #72994 (mbc_to_code() out of bounds read). (Laruence, cmb)
 -  . Fixed bug #66964 (mb_convert_variables() cannot detect recursion). (Yasuo)
 +  . Fixed bug #66797 (mb_substr only takes 32-bit signed integer). (cmb)
 +  . Fixed bug #66964 (mb_convert_variables() cannot detect recursion) (Yasuo)
    . Fixed bug #72992 (mbstring.internal_encoding doesn't inherit default_charset).
      (Yasuo)
  

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