npm install when, sequelize, sqlite3, remove mongoose, async
Disable karma and istanbul watch tasks
Change nodemon to not restart server for now
Add config.js file to root
initial sequelize setup
initial sequelize models group and item
Fixup group and item schemas
Add database seed module
Break up database init into smaller promises
Seed database by default if database file doesn't exist
Remove mongoose, add sequelize in server.js; Disable app until finished