Tidy up tests, build scripts, and documentation:

* Concepts split up into individual files
* Function definitions moved to .ipp files
* Add more tests to fill gaps in coverage
* Fix documentation Xsl

test/http/body_type.cpp

@@ -0,0 +1,9 @@
+//
+// Copyright (c) 2013-2016 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+// Test that header file is self-contained.
+#include <beast/http/body_type.hpp>

test/http/body_writer.cpp

@@ -0,0 +1,9 @@
+//
+// Copyright (c) 2013-2016 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+// Test that header file is self-contained.
+#include <beast/http/body_type.hpp>

test/http/nodejs_parser.hpp

@@ -13,7 +13,7 @@
 #include <beast/http/error.hpp>
 #include <beast/http/message_v1.hpp>
 #include <beast/http/rfc2616.hpp>
-#include <beast/type_check.hpp>
+#include <beast/buffer_concepts.hpp>
 #include <boost/asio/buffer.hpp>
 #include <boost/system/error_code.hpp>
 #include <cstdint>

test/http/parser_v1.cpp

@@ -15,7 +15,7 @@
 namespace beast {
 namespace http {
 
-class parser_test : public beast::detail::unit_test::suite
+class parser_v1_test : public beast::detail::unit_test::suite
 {
 public:
     void run() override
@@ -64,7 +64,7 @@ public:
     }
 };
 
-BEAST_DEFINE_TESTSUITE(parser,http,beast);
+BEAST_DEFINE_TESTSUITE(parser_v1,http,beast);
 
 } // http
 } // beast