Fixes #6 by downloading all data from the spreadsheets. GIDs of each prepared ci
ty need to be added to the index sheet.
Fixes #2 by adding the category "Noch nicht kategorisiert" in the script and in the data. The value of this category is calculated automatically in the spreadsheet with a formula based on the other categories.
Fixes #7 by removing the autoPan: false from the popup properties. @stefanw was there a reason for this?