Update Paymo Plugin

Paymo has limited the number of API calls GrandTotal can send to fetch Paymo data. In order to make it work again, the Plugin and GrandTotal itself needed to be modified.

Please follow this steps

1. Update GrandTotal to the latest version. Menu GrandTotal/Check for updates
2. Re-download the Paymo plugin from GrandTotal Overview and replace your old plugin.
3. Re-enter your Paymo token in the gear button on the bottom of the Paymo Section in GrandTotal. You can generate a new token here.