README tweak
Fix README typo
Fix case in CoffeeShop examples
Merge remote-tracking branch 'origin/master'

* origin/master:
  Updadted setup.py
Merge remote-tracking branch 'origin/master'

* origin/master:
  Added South migration code
Fix version of python-geohash
Merge pull request #2 from dabapps/fix-geohash

Fix geohash and README