protocol tweaks

- allow PUT as an HTTP verb
- as per RFC2616, trailing CRLF is disallowed.

src/buoy_protocol.erl

@@ -44,7 +44,7 @@ request(Method, Path, Headers, Host, undefined) ->
         <<"Host: ">>, Host,
         <<"\r\nConnection: Keep-alive\r\n">>,
         <<"User-Agent: buoy\r\n">>,
-        format_headers(Headers), <<"\r\n">>];
+        format_headers(Headers)];
 request(Method, Path, Headers, Host, Body) ->
     ContentLength = integer_to_binary(iolist_size(Body)),
     Headers2 = [{<<"Content-Length">>, ContentLength} | Headers],
@@ -55,7 +55,7 @@ request(Method, Path, Headers, Host, Body) ->
         <<"\r\nConnection: Keep-alive\r\n">>,
         <<"User-Agent: buoy\r\n">>,
         format_headers(Headers2), <<"\r\n">>,
-        Body, <<"\r\n">>].
+        Body].
 
 -spec response(binary()) ->
     {ok, buoy_resp(), binary()} | error().
@@ -134,7 +134,9 @@ content_length([_ | T]) ->
 format_method(get) ->
     <<"GET">>;
 format_method(post) ->
-    <<"POST">>.
+    <<"POST">>;
+format_method(put) ->
+    <<"PUT">>.
 
 format_headers(Headers) ->
     [format_header(Header) || Header <- Headers].