Suppress JSyn's java.util.logging INFO messages during library initialization #12
Description
Some users are confused/unsettled by the logging messages produced by JSyn during initialization, which show up as red text in the Processing interface (see e.g. here). The user experience could be improved by (temporarily) setting the relevant JSyn classes' logging level to WARNING (or higher) until initialization is complete. This is the relevant Java logging class/method to use: https://docs.oracle.com/javase/7/docs/api/java/util/logging/Logger.html#setLevel(java.util.logging.Level)
Affected JSyn classes whose logging levels need to be adjusted are (at least) com.jsyn.devices.javasound.JavaSoundAudioDevice, com.jsyn.engine.SynthesisEngine and com.jsyn.engine.SynthesisEngine$EngineThread