Faster sorting algo

Author: laruence

UPGRADING

@@ -56,6 +56,8 @@ PHP X.Y UPGRADE NOTES
     output buffer is created in an output buffer handler.
   . Added zend_memnstr_ex, which is based on string matching sunday algo.
   . Added zend_memnrstr, zend_memnrstr_ex.
+  . Added hybrid sorting algo zend_sort for better performance.
+  . Added stable sorting algo zend_insert_sort.
 
 - DBA
   . dba_delete() now returns false if the key was not found for the inifile

Zend/Makefile.am

@@ -13,7 +13,7 @@ libZend_la_SOURCES=\
 	zend_vm_opcodes.c zend_opcode.c zend_operators.c zend_ptr_stack.c zend_stack.c \
 	zend_variables.c zend.c zend_API.c zend_extensions.c zend_hash.c \
 	zend_list.c zend_indent.c zend_builtin_functions.c zend_sprintf.c \
-	zend_ini.c zend_qsort.c zend_objects.c zend_object_handlers.c \
+	zend_ini.c zend_sort.c zend_objects.c zend_object_handlers.c \
 	zend_objects_API.c zend_ts_hash.c zend_stream.c \
 	zend_default_classes.c \
 	zend_iterators.c zend_interfaces.c zend_exceptions.c \