Added default value for max_slave_connections=1. It is set when router instance is created. Default value is overwritten if configuration parameter is found.

Added missing makefile to server/modules/routing/test . It is needed for system testing. Prior this fix, 'make testall' failed because the makefile was missing.

server/modules/include/readwritesplit.h

@@ -50,6 +50,9 @@ typedef enum rses_property_type_t {
 	RSES_PROP_TYPE_COUNT=RSES_PROP_TYPE_LAST+1
 } rses_property_type_t;
 
+/** default values for rwsplit configuration parameters */
+#define CONFIG_MAX_SLAVE_CONN 1
+
 /**
  * Session variable command
  */