implement CLI instructor tests

[titaniumbones]

• [ ] Choose Mocha, Jest, or Karma as framework
• [ ] use chai, jest, or jasmine assertions
• [ ] hook up to travis
• [ ] use output in hw assignments

[titaniumbones]

i htink I want to use karma, iwth the mocha-reporter for CLI usage, and the https://github.com/a11smiles/karma-html-detailed-reporter for html (or maybe the original karma-html-reporter).

[titaniumbones]

Basically, I have thisworkingwith new instructor switches & improved workflow.