Added dummy tasks for mysql and pgsql tests

Makefile

@@ -62,6 +62,14 @@ lint:
 test:
 	for PKG in $(PACKAGES); do go test -cover -coverprofile $$GOPATH/src/$$PKG/coverage.out $$PKG || exit 1; done;
 
+.PHONY: test-mysql
+test-mysql:
+	@echo "Not integrated yet!"
+
+.PHONY: test-pgsql
+test-pgsql:
+	@echo "Not integrated yet!"
+
 .PHONY: check
 check: test