adding affine dependency to travis

.travis.yml

@@ -50,7 +50,7 @@ install:
 
   # Development installation
   - conda install nose coverage sh anaconda-client
-  - pip install coveralls
+  - pip install coveralls affine
 
   # Straight from the menpo team
   - if [["$TRAVIS_OS_NAME" == "osx"]]; then

plio/date/__init__.py

+from . import julian2ls
+from . import julian2season

plio/io/__init__.py

+from . import io_autocnetgraph
+from . import io_controlnetwork
+from . import io_db
+from . import io_gdal
+from . import io_hdf
+from . import io_json
+from . import io_krc
+from . import io_pvl
+from . import io_spectral_profiler
+from . import io_tes
+from . import io_yaml
+from . import isis_serial_number