Updating from an old version of FireApp

1. if you've done some customization to your project, we recommend importing the new version of FireApp as is, and THEN start copying your modifications over to new version.

you can also use some tools like 'WinMerge' to see actual changes between two projects.

2. make sure to update Firebase Security rules by copying it from the new version over to Firebase Console.
3. make sure to Deploy New Cloud Functions by copying and replacing the new files over to your Cloud Functions folder.

after that run the command firebase deploy and make sure terminal is inside 'functions' folder.