Removed section on devices, added new methods

doc/zmq.txt

@@ -84,6 +84,9 @@ Access message content::
     linkzmq:zmq_msg_data[3]
     linkzmq:zmq_msg_size[3]
 
+Get message properties::
+    linkzmq:zmq_getmsgopt[3]
+
 Message manipulation::
     linkzmq:zmq_msg_copy[3]
     linkzmq:zmq_msg_move[3]
@@ -113,7 +116,9 @@ Establishing a message flow::
 
 Sending and receiving messages::
     linkzmq:zmq_send[3]
+    linkzmq:zmq_sendmsg[3]
     linkzmq:zmq_recv[3]
+    linkzmq:zmq_recvmsg[3]
 
 .Input/output multiplexing
 0MQ provides a mechanism for applications to multiplex input/output events over
@@ -143,24 +148,6 @@ Local in-process (inter-thread) communication transport::
     linkzmq:zmq_inproc[7]
 
 
-Devices
-~~~~~~~
-Apart from the 0MQ library the 0MQ distribution includes 'devices' which are
-building blocks intended to serve as intermediate nodes in complex messaging
-topologies.
-
-The following devices are provided:
-
-Forwarder device for request-response messaging::
-    linkzmq:zmq_queue[1]
-
-Forwarder device for publish-subscribe messaging::
-    linkzmq:zmq_forwarder[1]
-
-Streamer device for parallelized pipeline messaging::
-    linkzmq:zmq_streamer[1]
-
-
 ERROR HANDLING
 --------------
 The 0MQ library functions handle errors using the standard conventions found on