Handle unavailable hidden services better. We try each intro point

until none are left, then we try to refetch the descriptor. If it's
the same one we had before, then close streams right then. Whenever
a new stream arrives, even if it's right after, optimistically try
refetching the descriptor, just in case.


svn:r3379

src/or/cpuworker.c

@@ -227,7 +227,7 @@ static int cpuworker_main(void *data) {
       if (r == 0) {
         log_fn(LOG_INFO,"CPU worker exiting because Tor process closed connection (either rotated keys or died).");
       } else {
-        log_fn(LOG_INFO,"CPU worker editing because of error on connection To Tor process.");
+        log_fn(LOG_INFO,"CPU worker editing because of error on connection to Tor process.");
         log_fn(LOG_INFO,"(Error on %d was %s)", fd, tor_socket_strerror(tor_socket_errno(fd)));
       }
       goto end;