Rename publish to broadcast

lib/action_cable/channel/base.rb

@@ -45,8 +45,8 @@ module ActionCable
           # Override in subclasses
         end
 
-        def publish(data)
-          @connection.publish(data.merge(identifier: @channel_identifier).to_json)
+        def broadcast(data)
+          @connection.broadcast(data.merge(identifier: @channel_identifier).to_json)
         end
 
         def start_periodic_timers

lib/action_cable/server.rb

@@ -38,7 +38,7 @@ module ActionCable
       end
     end
 
-    def publish(data)
+    def broadcast(data)
       render data
     end