Remove the word "experimental" since HTTP/2 has been finalized

contrib/nghttpx.service.in

 [Unit]
-Description=HTTP/2 experimental proxy
+Description=HTTP/2 proxy
 After=network.target
 
 [Service]

doc/conf.py.in

@@ -244,12 +244,9 @@ latex_documents = [
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    ('nghttp.1', 'nghttp', u'HTTP/2 experimental client',
-     [u'Tatsuhiro Tsujikawa'], 1),
-    ('nghttpd.1', 'nghttpd', u'HTTP/2 experimental server',
-     [u'Tatsuhiro Tsujikawa'], 1),
-    ('nghttpx.1', 'nghttpx', u'HTTP/2 experimental proxy',
-     [u'Tatsuhiro Tsujikawa'], 1),
+    ('nghttp.1', 'nghttp', u'HTTP/2 client', [u'Tatsuhiro Tsujikawa'], 1),
+    ('nghttpd.1', 'nghttpd', u'HTTP/2 server', [u'Tatsuhiro Tsujikawa'], 1),
+    ('nghttpx.1', 'nghttpx', u'HTTP/2 proxy', [u'Tatsuhiro Tsujikawa'], 1),
     ('h2load.1', 'h2load', u'HTTP/2 benchmarking tool',
      [u'Tatsuhiro Tsujikawa'], 1)
 ]

doc/sources/index.rst

@@ -6,8 +6,7 @@
 nghttp2 - HTTP/2 C Library
 ============================
 
-This is an experimental implementation of Hypertext Transfer Protocol
-version 2.
+This is an implementation of Hypertext Transfer Protocol version 2.
 
 The project is hosted at `github.com/tatsuhiro-t/nghttp2 <https://github.com/tatsuhiro-t/nghttp2>`_.
 

src/nghttp.cc

@@ -2356,7 +2356,7 @@ void print_version(std::ostream &out) {
 namespace {
 void print_usage(std::ostream &out) {
   out << R"(Usage: nghttp [OPTIONS]... <URI>...
-HTTP/2 experimental client)" << std::endl;
+HTTP/2 client)" << std::endl;
 }
 } // namespace
 

src/nghttpd.cc

@@ -87,7 +87,7 @@ void print_version(std::ostream &out) {
 namespace {
 void print_usage(std::ostream &out) {
   out << "Usage: nghttpd [OPTION]... <PORT> [<PRIVATE_KEY> <CERT>]\n"
-      << "HTTP/2 experimental server" << std::endl;
+      << "HTTP/2 server" << std::endl;
 }
 } // namespace