config.system is not always defined

[AlCalzone]

This leads to an error TypeError: Cannot read property 'statisticsInterval' of undefined in

ioBroker.js-controller/lib/adapter.js

Line 5196 in 2a32f40

that.states.setState(id + '.alive', {val: true, ack: true, expire: Math.floor(config.system.statisticsInterval / 1000) + 10, from: id});

See failing tests, e.g.
https://ci.appveyor.com/project/Apollon77/iobroker-js-controller/build/test-422/job/n30wd7ovxixgv4qy

[Apollon77]

Still open?