Remove reference to "I/O" in app name.
Converting indentation from tabs to spaces so it's easier to use diff software to compare changes between source and solution.
Fixed indentation of .save() method.
Semi-colon update.
Small gender neutral word edit.
Convert tabs to spaces for consistency.
Missing semi-colon.
Small re-ordering to better match codelab descriptions.
Updating export.js for readability and a bug fix.
Merge pull request #2 from pearlchen/master

Rubber stamp lgtm.