Fix logging and MaxListenersExceededWarning stateChange warning

[dnicolson]

• 2306805 fixes npm install.
• faf97bf fixes the undefined logging after 3b5a876.
• 83bea71 prevents the following warning:

MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 stateChange listeners added to [Noble]. MaxListeners is 10. Use emitter.setMaxListeners() to increase limit

[coveralls]

Pull Request Test Coverage Report for Build 17193071878

Details

• 3 of 10 (30.0%) changed or added relevant lines in 1 file are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.04%) to 32.647%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/switchbot-ble.ts	3	10	30.0%

Files with Coverage Reduction	New Missed Lines	%
src/switchbot-ble.ts	2	15.1%

Totals
Change from base Build 16892043029:	-0.04%
Covered Lines:	1026
Relevant Lines:	3293

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💛 - Coveralls