Changed version numbers for the addon to just correspond to revisions in the repository. This is

Changed version numbers for the addon to just correspond to revisions in the repository.  This is
simpler than trying to track 1.x, 2.0, etc.
Added colorization to the shopping list: the item shows in green if the character has it in their
inventory, blue-green if the character has at least *some* of the item, purple if the character
has the item in their bank, and some other color (>.>) if the item is in the mail (NYI).