* Adds 'enabled' column into 'users' table with database/migration.js file.
* Ignore errors when adding new columns in database/migration.js. There's a better method by checking whether the columns already exist before adding them, but this will do for now.
* Properly merged changes from master.
* database/migration.js will now exit after migartion.
* Replaced all instances of createTableIfNotExists() into a combination of hasTable() and createTable() in db.js.
* Switched ESLint + Aqua to Standard. I'm a big fan of Standard. Updated yarn.lock file too.
* Lots of refactors to follow the rules of Standard.
* Fixed issue with uploading as a not logged in user.
