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/compress.test

@@ -1,6 +1,9 @@
 # Turn on compression between the client and server
 # and run a number of tests
 
+# Can't test with embedded server
+-- source include/not_embedded.inc
+
 -- source include/have_compress.inc
 
 connect (comp_con,localhost,root,,,,,COMPRESS);