Additional bug fixes

matrix/api.lua

@@ -88,7 +88,7 @@ function API:sync(options)
          filter = options.filter,
          since = options.since,
          full_state = options.full or false,
-         set_presence = online and nil or "offline",
+         set_presence = options.online and nil or "offline",
          timeout = options.timeout,
       }
    end

matrix/client.lua

@@ -239,7 +239,7 @@ local make_unimplemented_handler = function (self, event)
       end
    else
       local function handler(self, event) end
-      make_unimplemented_handler = function (self, event)
+      local make_unimplemented_handler = function (self, event)
          self:_log("no handler for '%s' events (this warning is shown only once)", event.type)
          return handler
       end