- Exit policies now support bitmasks (18.0.0.0/255.0.0.0) and bitcounts
  18.0.0.0/8.  Policies are parsed on startup, not when comparing to them.

- desired_path_len is now part of an opaque cpath_build_state_t structure.

- END_REASON_EXITPOLICY cells no longer include a port.

- RELAY_COMMAND_CONNECTED cells now include the IP address we've connected
  to.

- connection_edge now has a client_dns cache to remember resolved addresses.
  It gets populated by RELAY_COMMAND_CONNECTED cells and END_REASON_EXITPOLICY
  cells.  It gets used by connection_ap_handshake_send_begin.  We don't
  compare it to exit policies yet.


svn:r812

svn:r811

svn:r810

change RecommendedVersions into a config option, so dirservers can hup
  for a new one


svn:r809

svn:r808

make exit dns cache entries last 15 minutes


svn:r807

svn:r806

svn:r805

svn:r804

svn:r803

svn:r802

A spacing tweak.


svn:r801

svn:r800

svn:r799

svn:r798

svn:r797

svn:r796

svn:r795

svn:r794

svn:r793

is a the first step in computing hops one step at a time.  Next, we move
the responsibility for calling onion_extend_cpath into circuit.c

(Later, we may want to special-case onion_extend_cpath to treat entry
and exit routers differently.)


svn:r792

svn:r791

svn:r790

svn:r789

that way we can reuse it if we need to try another begin later


svn:r788

svn:r787

svn:r786

svn:r785

svn:r784

Also:
  - Refactor socks request into a separate struct
  - Add a separate 'waiting for circuit' state to AP connections
    between 'waiting for socks' and 'open'.

Arma: can you check out the XXX's I've added to connection_edge? I may
be mishandling some async and close logic.


svn:r783

svn:r782

svn:r781

fix badness in usage()
if neither socksport nor orrport is defined, quit
obsolete connection_flush_buf()


svn:r780

svn:r779

svn:r778

svn:r777

svn:r776

svn:r775

svn:r774

svn:r773