TST: Add Pandas 0.17.0rc1 to travis test

Author: David Stephens

.travis.yml

@@ -7,6 +7,7 @@ env:
   - PYTHON=2.7 PANDAS=0.15.1
   - PYTHON=3.3 PANDAS=0.14.1
   - PYTHON=3.4 PANDAS=0.16.2
+  - PYTHON=3.4 PANDAS=v0.17.0rc1
   - PYTHON=2.7 PANDAS=0.12.0
   - PYTHON=2.7 PANDAS=0.11.0
   - PYTHON=2.7 PANDAS=0.10.1
@@ -31,11 +32,11 @@ install:
   - export PATH="$HOME/miniconda/bin:$PATH"
   - hash -r
   - conda config --set always_yes yes --set changeps1 no
+  - conda config --add channels pandas
   - conda update -q conda
   # Useful for debugging any issues with conda
   - conda info -a
 
-  # Replace dep1 dep2 ... with your dependencies
   - conda create -q -n test-environment python=$PYTHON pandas=$PANDAS nose coverage setuptools html5lib lxml beautiful-soup
   - source activate test-environment
   - pip install coveralls --quiet

pandas_datareader/data.py

@@ -91,7 +91,7 @@ def DataReader(name, data_source=None, start=None, end=None,
 def Options(symbol, data_source=None):
     if data_source is None:
         warnings.warn("Options(symbol) is deprecated, use Options(symbol,"
-                        " data_source) instead", FutureWarning)
+                        " data_source) instead", FutureWarning, stacklevel=2)
         data_source = "yahoo"
     if data_source == "yahoo":
         return YahooOptions(symbol)