LVK Supplies

#72: Added: per-item reminder thresholds; can now configure each item to
have a separate lower and upper threshold for when reminders should be
given to visit the bank

#80: Added: Addon now remembers the number of units in the bank for each
item on the supply list, from the last visit to your bank. Various
messages from the addon have been adjusted to include this number.

#81: Fixed: Missing title over keyboard bindings in Key Bindings dialog.