Rename geocode to reverse_geocode

Following discussion in #121.

geopandas/geocode.py

@@ -62,7 +62,7 @@ def geocode(strings, provider='googlev3', **kwargs):
     return _query(strings, True, provider, **kwargs)
 
 
-def reverse(points, provider='googlev3', **kwargs):
+def reverse_geocode(points, provider='googlev3', **kwargs):
     """
     Reverse geocode a set of points and get a GeoDataFrame of the resulting
     addresses.
@@ -93,8 +93,8 @@ def reverse(points, provider='googlev3', **kwargs):
 
     Example
     -------
-    >>> df = reverse([Point(-71.0594869, 42.3584697),
-                      Point(-77.0365305, 38.8977332)])
+    >>> df = reverse_geocode([Point(-71.0594869, 42.3584697),
+                              Point(-77.0365305, 38.8977332)])
 
                                              address  \
     0             29 Court Square, Boston, MA 02108, USA

tests/test_geocode.py

@@ -8,7 +8,7 @@ from shapely.geometry import Point
 import geopandas as gpd
 import nose
 
-from geopandas.geocode import geocode, reverse, _prepare_geocode_result
+from geopandas.geocode import geocode, reverse_geocode, _prepare_geocode_result
 from .util import unittest
 
 
@@ -78,7 +78,7 @@ class TestGeocode(unittest.TestCase):
 
     def test_bad_provider_reverse(self):
         with self.assertRaises(ValueError):
-            reverse(['cambridge, ma'], 'badprovider')
+            reverse_geocode(['cambridge, ma'], 'badprovider')
 
     def test_googlev3_forward(self):
         from geopandas.geocode import geocode
@@ -87,7 +87,7 @@ class TestGeocode(unittest.TestCase):
 
     def test_googlev3_reverse(self):
         from geopandas.geocode import geocode
-        g = reverse(self.points, provider='googlev3', timeout=2)
+        g = reverse_geocode(self.points, provider='googlev3', timeout=2)
         self.assertIsInstance(g, gpd.GeoDataFrame)
 
     def test_openmapquest_forward(self):