In addon:addTradeAcquire(): Added location lookup for reputation vendors.

In addon:addTradeAcquire(): Added location lookup for reputation vendors.
Re-wrote CheckMapDisplay() for clarity, and added support for reputation vendors.
In addon:SetupMap(): Changed maplist so its key is the acquire entry rather than the entry's ID, and its value is true rather than the acquire type - this allows reputation vendor support. Also changed some code for clarity/efficiency, changed concatenation to Printf(), and added support for instance coordinates.
Added x and y coordinates (mostly 0,0 - save for Magister's Terrace which has proper coords and the correct continent) to the entries in INSTANCE_LOCATIONS.
Added some debug prints (commented out) in LoadZones() and just before every call to it to help with assigning proper continents to instances.