Big patch to make embedded-server working in 5.x

Now it supports queries returning several results
(particularly important with the SP)

mysql-test/t/delayed.test

@@ -3,6 +3,9 @@
 # (Can't be tested with purify :( )
 #
 
+# This tests not performed with embedded server
+-- source include/not_embedded.inc
+
 --disable_warnings
 drop table if exists t1;
 --enable_warnings