Update dependency nightwatch to v1

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This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
nightwatch (source)	0.9.8 -> 1.0.1

By merging this PR, the below issues will be automatically resolved and closed:

Severity	CVSS Score	CVE	GitHub Issue
High	9.8	CVE-2017-1000228	#251
High	9.8	CVE-2017-16042	#303
High	7.5	CVE-2016-10540	#280
High	7.1	WS-2018-0590	#236

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