* origin/master: (40 commits)
int to size_t where the underlaying API supports it
use php_socket_t instead of int
fix signed/unsigned mismatch warning
fix compilation warning
Improved specialisation $this variable accessed through IS_UNUSED operand must be IS_OBJECT, so we don't have to check for its type or perform dereference.
Add notes about get_class_entry/get_class_name to UPGRADING
Fix casts in GD
Drop redundant casting code from ext/filter
update NEWS
update NEWS
update NEWS
update NEWS
Added note to UPGRADING regarding 64-bit support in pack()/unpack()
pack(): Use SIZEOF_ZEND_LONG instead of SIZEOF_LONG
Add 64 bit formats to pack() and unpack()
Help to CPU branch predictor
Removed unused EG(orig_error_reporting)
Update get_class_name semantics
Remove Z_OBJ_CLASS_NAME_P
Improved VM stack primitives for fast paths. Slow paths are not inlined anymore.
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