fixes double json.encode on matchmake requests

Author: endel

colyseus/client.lua

@@ -110,7 +110,7 @@ function Client:create_matchmake_request(method, room_name, options_or_callback,
     options = options_or_callback
   end
 
-  self.http:request('POST', "matchmake/" .. method .. "/" .. room_name, { body = JSON.encode(options), }, function(err, response)
+  self.http:request('POST', "matchmake/" .. method .. "/" .. room_name, { body = options, }, function(err, response)
     if (err) then return callback(err) end
 
     -- forward reconnection token during "reconnect" methods.

colyseus/room.lua

@@ -129,7 +129,6 @@ end
 
 ---@private
 function Room:_on_message (binary_string, it)
-  print("_on_message!", binary_string)
   local message = utils.string_to_byte_array(binary_string)
 
   local code = message[it.offset]

test/schema_serializer.lua

@@ -1,7 +1,6 @@
 local schema = require 'colyseus.serialization.schema.schema'
 local schema_serializer = require 'colyseus.serialization.schema'
 local reference_tracker = require 'colyseus.serialization.schema.reference_tracker'
-local JSON = require('colyseus.serialization.json')
 
 return function()
   local PrimitiveTypes = require 'test.schema.PrimitiveTypes.PrimitiveTypes'