adds comments
(feat) Add circle.yml. Add nodemodules to gitignore
Merge pull request #6 from christophertrev/feat/circleDeploy
Update circle.yml
Refactor socket.io instantiation to its own factory.  Closes #15
Merge pull request #18 from noodle/master

Refactor socket.io instantiation to its own factory.  Closes #15
(refactor) Correct spelling error of sitename. Closes #21
Merge pull request #25 from christophertrev/refactor/nameChange
(refactor) Changed prestart to postinstall in package.json
Merge pull request #29 from christophertrev/refactor/packJson

(refactor) Changed prestart to postinstall in package.json
(feat) Added login route for modularity. Closes #31
Merge pull request #33 from christophertrev/feat/signupPage
(refactor) Connect server to mongo database. Add local mongoDB data folder to .gitignore. Closes #32
Merge pull request #34 from noodle/master

(refactor) Connect server to mongo database.  Closes #32
(bug) Correct spelling of MONGOLAB_URI environment variable
Merge pull request #35 from noodle/master

(bug) Correct spelling of MONGOLAB_URI environment variable
(refactor) Teacher.js more modular. Closes #30