Break files apart into more modules

* \file circuitbuild.c
 * \brief The actual details of building circuits.

 * \file circuitlist.c
 * \brief Manage the global circuit list.

 * \file circuituse.c
 * \brief Launch the right sort of circuits, attach streams to them.

 * \file connection_edge.c
 * \brief Handle edge streams.

 * \file onion.c
 * \brief Functions to queue create cells, and handle onionskin
 * parsing and creation.

 * \file relay.c
 * \brief Handle relay cell encryption/decryption, plus packaging and
 * receiving from circuits.


svn:r1863

src/or/rendclient.c

@@ -12,7 +12,7 @@
 /** Called when we've established a circuit to an introduction point:
  * send the introduction request. */
 void
-rend_client_introcirc_is_open(circuit_t *circ)
+rend_client_introcirc_has_opened(circuit_t *circ)
 {
   tor_assert(circ->purpose == CIRCUIT_PURPOSE_C_INTRODUCING);
   tor_assert(CIRCUIT_IS_ORIGIN(circ) && circ->cpath);
@@ -133,7 +133,7 @@ err:
 /** Called when a rendezvous circuit is open; sends a establish
  * rendezvous circuit as appropriate. */
 void
-rend_client_rendcirc_is_open(circuit_t *circ)
+rend_client_rendcirc_has_opened(circuit_t *circ)
 {
   tor_assert(circ->purpose == CIRCUIT_PURPOSE_C_ESTABLISH_REND);
   tor_assert(CIRCUIT_IS_ORIGIN(circ));