Add tests from develop

Added tests from develop. The test results need to be modified for 2.0.

maxscale-system-test/Hartmut_tests/maxscale-mysqltest/r/test_implicit_commit7.result

@@ -0,0 +1,12 @@
+USE test;
+DROP TABLE IF EXISTS T1;
+CREATE TABLE T1 (id integer);
+SET autocommit=1;
+BEGIN;
+CREATE INDEX foo_t1 on T1 (id);
+SELECT (@@server_id) INTO @a;
+SELECT IF(@a <> @TMASTER_ID,'OK (slave)','FAIL (master)') AS result;
+result
+OK (slave)
+DROP TABLE T1;
+COMMIT;