Pull Request for Issue #86 - Fix dependency vulnerabilities

[robincher]

Fixes #86

Checklist

• I have made a material change to the repo (functionality, testing, spelling, grammar)
• I have read the [Contribution Guide] and my PR follows them.
• I updated my branch with the master branch.
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation about the functionality in the appropriate .md file
• I have added in line documentation to the code I modified

Short description of what this PR does:

• Update esdoc dev dependency version
• Remove away marked (sub-dependency of esdoc) vulnerability
• Bump package.json version by minor increment
• Update License End-Year based on existing test requirement

[SendGridDX]

All committers have signed the CLA.

[robincher]

Additional vulnerabilities was flagged out by running npm audit, and it was suggested to bump up mocha version to 5.x.x. Should i fix that within this Pull request too? @thinkingserious @mbernier

[thinkingserious]

This is awesome @robincher!

I've added this to our backlog for a review and merge.

With Best Regards,

Elmer

[thinkingserious]

Please set this back to 2.4.0. I will be updating the version number at the next release. Thanks!

[robincher]

Got it, will commit the corresponding package-lock.json too

[robincher]

Hi @thinkingserious , additionally i updated the dev dependency - mocha to the latest. The previous version 2.x.x was having vulnerabilities if you run npm audit. I have run the local test and its all good

Update
Seems like the latest Mocha will caused the build to failed , especially at the latest node version. Maybe i can do another PR to fix this while updating travis config?

[thinkingserious]

Note to code reviewers: we need to make sure none of these updates are breaking changes.

[thinkingserious]

Hello @robincher,

Thanks again for the PR!

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Team SendGrid DX

[robincher]

Opps sorry @thinkingserious , i have a separate PR (incoming), so i have reverted the wrong commits. Need you to resign the CLA again :(

[thinkingserious]

Closing in favor of #117