Bugs Fixed

1. Check if Excel Cell contains error before reading value to prevent a Notes crash. Log the error (If logging is enabled). eg. #NA (side effect is that no Excel cell beginning with hash can be uploaded)
   
2. Sorting of Scheduled Configs by Frequency (Daily, Monthly)
   
3. Fixed bug to ensure that Config set to run Monthly runs only on the specified date
   
4. Logging if the email notification fails (sendTo or CopyTo are not in the address book). Previously this generated a general error that was handled in the main sub.
   
5. Added handling for writing to Author fields.
   
6. Clearer display for "Field to modify - Target Db" in read mode.
   
7. Removed misleading "Add Field" hotspot in the Excel to Notes Logging option because selecting Notes fields will not work in this context.
   
8. Updated About db page to include version number and link to OpenNTF website