Update man pages

doc/h2load.1

 .\" Man page generated from reStructuredText.
 .
-.TH "H2LOAD" "1" "Jul 21, 2016" "1.13.0" "nghttp2"
+.TH "H2LOAD" "1" "Jul 31, 2016" "1.14.0-DEV" "nghttp2"
 .SH NAME
 h2load \- HTTP/2 benchmarking tool
 .

doc/nghttp.1

 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTP" "1" "Jul 21, 2016" "1.13.0" "nghttp2"
+.TH "NGHTTP" "1" "Jul 31, 2016" "1.14.0-DEV" "nghttp2"
 .SH NAME
 nghttp \- HTTP/2 client
 .
@@ -142,10 +142,13 @@ HTTP upgrade request is performed with OPTIONS method.
 .INDENT 0.0
 .TP
 .B \-p, \-\-weight=<WEIGHT>
-Sets priority group weight.  The valid value range is
+Sets  weight of  given  URI.  This  option  can be  used
+multiple times, and  N\-th \fI\%\-p\fP option sets  weight of N\-th
+URI in the command line.  If  the number of \fI\%\-p\fP option is
+less than the number of URI, the last \fI\%\-p\fP option value is
+repeated.  If there is no \fI\%\-p\fP option, default weight, 16,
+is assumed.  The valid value range is
 [1, 256], inclusive.
-.sp
-Default: \fB16\fP
 .UNINDENT
 .INDENT 0.0
 .TP

doc/nghttp.1.rst

@@ -107,11 +107,14 @@ OPTIONS
 
 .. option:: -p, --weight=<WEIGHT>
 
-    Sets priority group weight.  The valid value range is
+    Sets  weight of  given  URI.  This  option  can be  used
+    multiple times, and  N-th :option:`-p` option sets  weight of N-th
+    URI in the command line.  If  the number of :option:`-p` option is
+    less than the number of URI, the last :option:`-p` option value is
+    repeated.  If there is no :option:`-p` option, default weight, 16,
+    is assumed.  The valid value range is
     [1, 256], inclusive.
 
-    Default: ``16``
-
 .. option:: -M, --peer-max-concurrent-streams=<N>
 
     Use  <N>  as  SETTINGS_MAX_CONCURRENT_STREAMS  value  of

doc/nghttpd.1

 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTPD" "1" "Jul 21, 2016" "1.13.0" "nghttp2"
+.TH "NGHTTPD" "1" "Jul 31, 2016" "1.14.0-DEV" "nghttp2"
 .SH NAME
 nghttpd \- HTTP/2 server
 .

doc/nghttpx.1

 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTPX" "1" "Jul 21, 2016" "1.13.0" "nghttp2"
+.TH "NGHTTPX" "1" "Jul 31, 2016" "1.14.0-DEV" "nghttp2"
 .SH NAME
 nghttpx \- HTTP/2 proxy
 .
@@ -1278,6 +1278,9 @@ Shutdown gracefully.  First accept pending connections and stop
 accepting connection.  After all connections are handled, nghttpx
 exits.
 .TP
+.B SIGHUP
+Reload configuration file given in \fI\%\-\-conf\fP\&.
+.TP
 .B SIGUSR1
 Reopen log files.
 .TP
@@ -1285,7 +1288,11 @@ Reopen log files.
 Fork and execute nghttpx.  It will execute the binary in the same
 path with same command\-line arguments and environment variables.
 After new process comes up, sending SIGQUIT to the original process
-to perform hot swapping.
+to perform hot swapping.  The difference between SIGUSR2 + SIGQUIT
+and SIGHUP is that former is usually used to execute new binary, and
+the master process is newly spawned.  On the other hand, the latter
+just reloads configuration file, and the same master process
+continues to exist.
 .UNINDENT
 .sp
 \fBNOTE:\fP

doc/nghttpx.1.rst

@@ -1163,6 +1163,9 @@ SIGQUIT
   accepting connection.  After all connections are handled, nghttpx
   exits.
 
+SIGHUP
+  Reload configuration file given in :option:`--conf`.
+
 SIGUSR1
   Reopen log files.
 
@@ -1170,7 +1173,11 @@ SIGUSR2
   Fork and execute nghttpx.  It will execute the binary in the same
   path with same command-line arguments and environment variables.
   After new process comes up, sending SIGQUIT to the original process
-  to perform hot swapping.
+  to perform hot swapping.  The difference between SIGUSR2 + SIGQUIT
+  and SIGHUP is that former is usually used to execute new binary, and
+  the master process is newly spawned.  On the other hand, the latter
+  just reloads configuration file, and the same master process
+  continues to exist.
 
 .. note::