Add missing "extra" parameter to import example
Add missing "extra" parameter to import example

My previous commit was a bit hasty, there is an additional parameter that must be passed before user.
The CodeIgniter web connector example passes null for this parameter by default, and that seems to work in my application.

ServiceTo/QuickBooks,csga5000/quickbooks-php,jbaldock/quickbooks-php,consolibyte/quickbooks-php