Added support and brief documentation of nearSphere operator for GeoPoints

README.mkd

@@ -283,6 +283,13 @@ Like Django, Querysets can have constraints added by appending the name of the f
 high_scores = GameScore.Query.filter(score__gte=1000)
 ~~~~~
 
+You can similarly perform queries on GeoPoint objects by using the `nearSphere` operator:
+
+~~~~~ {python}
+my_loc = GeoPoint(latitude=12.0, longitude=-34.55)
+nearby_restaurants = Restaurant.Query.filter(location__nearSphere=my_loc)
+~~~~~
+
 You can see the [full list of constraint operators defined by
 Parse](https://www.parse.com/docs/rest#queries-constraints)
 

parse_rest/query.py

@@ -56,7 +56,7 @@ class QueryManager(object):
 class Queryset(object):
 
     OPERATORS = [
-        'lt', 'lte', 'gt', 'gte', 'ne', 'in', 'nin', 'exists', 'select', 'dontSelect', 'all', 'relatedTo'
+        'lt', 'lte', 'gt', 'gte', 'ne', 'in', 'nin', 'exists', 'select', 'dontSelect', 'all', 'relatedTo', 'nearSphere'
     ]
 
     @staticmethod