Story content - added a Tavern

Modified   Adventure.py
--MOD added Ale object and moved some objects
--MOD added a preface
--MOD embished descriptions of Village and Tavern
--MOD formatted items 2 chars right.
--MOD added dirs NE,NW,SE,SW
Allowed compass directions as full words (eg. 'North'), and access to inventory via 'I' or 'INVENT'.
added to backstory, edited inventory format and fleshed out
the location Inhut
Fixed bugs when getting and dropping objects already in inventory (or already dropped). Also stopped saying 'There is also' when there is nothing else at this location.
added locations as lists