Address Security and Unused Package Issues

[yuliyv]

There were several issues with the package.json that this PR resolves

• clayutils, nymag-fs, and xml-js were not used anywhere
• lodash was not explicitly included as a dev dependency even though it is explicitly used by our tests
• Security issue with lodash@4.17.4
• Security issue with sshpk@1.13.1
  • This one is particularly hairy. coveralls requires http-signature which requires sshpk. The PR into http-signature for the fix is getting ignored, so instead I have just included the package explicitly in our repository so that we stop requiring the version which has the vulnerability

Additionally the logging had amphoraSearchVersion instead of amphoraRss version in the metadata.

[coveralls]

Pull Request Test Coverage Report for Build 39

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 37:	0.0%
Covered Lines:	136
Relevant Lines:	136

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💛 - Coveralls

[amycheng]

💯 PR description