protocol_version method: fix for newer cowboy versions when cowboy is…

… used with mochiweb_request

Newer Cowboy versions return HTTP version as 'HTTP/1.1' and 'HTTP1.0' atoms, instead of {1,1}, {1,0} as it was earlier. This commit converts atoms to old-fashioned tuples, works with both new and old cowboy versions.

src/mochiweb_bridge_modules/mochiweb_request_bridge.erl

@@ -162,4 +162,8 @@ recv_from_socket(Length, Timeout, Req) ->
     end.
 
 protocol_version(Req) ->
-    Req:get(version).
+    case Req:get(version) of
+      'HTTP/1.1' -> {1, 1};
+      'HTTP/1.0' -> {1, 0};
+      {H, L} -> {H, L}
+    end.