add necessary try/catch blocks and related changes to prevent RtAudio exceptions from crashing the host process.
add necessary try/catch blocks and related changes to prevent RtAudio exceptions from crashing the host process.

justinlatimer/node-midi,Cycling74/node-midi,justinlatimer/node-midi,Cycling74/node-midi,Cycling74/node-midi,Cycling74/node-midi,Cycling74/node-midi,justinlatimer/node-midi,Cycling74/node-midi