Update to configurable firmata 3.2

[passat92]

Hello can you please update the builder to version 3.2? I cant compile this for a mega2560 with ethernet shield and one wire sensors.
and I'm too stupid to write myself

[pgrawehr]

You can directly use the ConfigurableFirmata example (should be in the examples list when you have the library installed). I'm not sure it works with the mega ethernet shield though, as I've never tested that.