Merge pull request #684 from gliptak/wb2

Update WorldBank indicator format

Author: bashtage

pandas_datareader/tests/test_wb.py

@@ -216,8 +216,8 @@ def test_wdi_get_indicators(self):
         result4 = WorldBankReader(session=session).get_indicators()
 
         for result in [result1, result2, result3, result4]:
-            exp_col = pd.Index(['id', 'name', 'source', 'sourceNote',
-                                'sourceOrganization', 'topics', 'unit'])
+            exp_col = pd.Index(['id', 'name', 'unit', 'source', 'sourceNote',
+                                'sourceOrganization', 'topics'])
             # assert_index_equal doesn't exists
             assert result.columns.equals(exp_col)
             assert len(result) > 10000