Update man pages

doc/h2load.1

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-.TH "H2LOAD" "1" "February 14, 2016" "1.8.0-DEV" "nghttp2"
+.TH "H2LOAD" "1" "February 25, 2016" "1.8.0" "nghttp2"
 .SH NAME
 h2load \- HTTP/2 benchmarking tool
 .

doc/nghttp.1

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-.TH "NGHTTP" "1" "February 14, 2016" "1.8.0-DEV" "nghttp2"
+.TH "NGHTTP" "1" "February 25, 2016" "1.8.0" "nghttp2"
 .SH NAME
 nghttp \- HTTP/2 client
 .

doc/nghttpd.1

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-.TH "NGHTTPD" "1" "February 14, 2016" "1.8.0-DEV" "nghttp2"
+.TH "NGHTTPD" "1" "February 25, 2016" "1.8.0" "nghttp2"
 .SH NAME
 nghttpd \- HTTP/2 server
 .

doc/nghttpx.1

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-.TH "NGHTTPX" "1" "February 14, 2016" "1.8.0-DEV" "nghttp2"
+.TH "NGHTTPX" "1" "February 25, 2016" "1.8.0" "nghttp2"
 .SH NAME
 nghttpx \- HTTP/2 proxy
 .
@@ -697,14 +697,6 @@ Allow black  listed cipher  suite on  HTTP/2 connection.
 See  \fI\%https://tools.ietf.org/html/rfc7540#appendix\-A\fP  for
 the complete HTTP/2 cipher suites black list.
 .UNINDENT
-.INDENT 0.0
-.TP
-.B \-\-backend\-tls\-session\-cache\-per\-worker=<N>
-Set  the maximum  number  of backend  TLS session  cache
-stored per worker.
-.sp
-Default: \fB10000\fP
-.UNINDENT
 .SS HTTP/2 and SPDY
 .INDENT 0.0
 .TP

doc/nghttpx.1.rst

@@ -622,13 +622,6 @@ SSL/TLS
     See  https://tools.ietf.org/html/rfc7540#appendix-A  for
     the complete HTTP/2 cipher suites black list.
 
-.. option:: --backend-tls-session-cache-per-worker=<N>
-
-    Set  the maximum  number  of backend  TLS session  cache
-    stored per worker.
-
-    Default: ``10000``
-
 
 HTTP/2 and SPDY
 ~~~~~~~~~~~~~~~
@@ -1474,12 +1467,6 @@ addresses:
 
     App.new
 
-NOTES
------
-
-1. nghttpx - HTTP/2 proxy - HOW-TO
-   https://nghttp2.org/documentation/nghttpx-howto.html
-
 SEE ALSO
 --------