Remove missing file reference

requireconfig.js was renamed to main.js (which is on the line above).
Merge pull request #31 from tpkelly/develop

Fix deployment
Remove chatbox

This is currently unsupported, so we remove it (the code is still
available in source control).
Add expiry date to userId

After the user signs in, their login is valid for 6 hours before they
have to log back in again.

This is designed to prevent issues with users having been assigned IDs
which are no longer in the database
Merge pull request #32 from tpkelly/develop

Remove chatbox
Merge pull request #33 from tpkelly/feature/login-expiry

Add expiry date to userId