Make directory name equal to the library name

* avro -> avrorouter
* binlog -> binlogrouter

server/modules/routing/binlogrouter/STATUS

@@ -0,0 +1,13 @@
+The binlog router contained here is a prototype implementation and
+should not be consider as production ready.
+
+The router has been written and tested with MySQL 5.6 as a reference
+for the replication behaviour, more investigation and implementation
+is likely to be needed in order to use other versions of MySQL,
+MariaDB or Percona Server.
+
+To Do List:
+
+1. The router does not implement the replication heartbeat mechanism.
+
+2. Performance measurements have yet to be made.