Installed JSHint Static Tool

[chloehdeng]

Resolves #23

• Installed JSHint, a static analysis tool that flags "suspicious" usage in JavaScript programs
• Tested using NodeBB files
• Sample: the following output message is generated after running ./jshint /src/admin/versions.js

[coveralls]

Pull Request Test Coverage Report for Build 4453343422

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.003%) to 84.963%

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Totals
Change from base Build 4453332316:	0.003%
Covered Lines:	22588
Relevant Lines:	25344

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💛 - Coveralls