Firebase deploy not working

And probably has not for a while, we just didn't notice it because the command still completes successfully, showing the following error though:

```
Error
at Error.FirebaseError (node_modules/firebase-tools/lib/error.js:11:17)
at module.exports (node_modules/firebase-tools/lib/responseToError.js:26:10)
at Request._callback (node_modules/firebase-tools/lib/api.js:32:23)
at Request.self.callback (node_modules/firebase-tools/node_modules/request/request.js:187:22)
at emitTwo (events.js:106:13)
at Request.emit (events.js:191:7)
at Request. (node_modules/firebase-tools/node_modules/request/request.js:1044:10)
at emitOne (events.js:96:13)
at Request.emit (events.js:188:7)
at IncomingMessage. (node_modules/firebase-tools/node_modules/request/request.js:965:12)
name: 'FirebaseError',
message: 'AuError: Command `node_modules/.bin/deploy` did not complete successfully
at ChildProcess. (node_modules/donejs-cli/lib/utils.js:38:23)
at emitTwo (events.js:106:13)
at ChildProcess.emit (events.js:191:7)
at Process.ChildProcess._handle.onexit (internal/child_process.js:204:12)
```