Try again to fix setup.py

setup.py

@@ -6,7 +6,7 @@ setup(name='InterCal',
       description='Inter-calibration tools for IR satellite data',
       url='http://tahiti.ssec.wisc.edu/trac/intercal',
       packages=find_packages(),
-      package_data={'': ['data/**']},
+      setup_requires=['setuptools-git'],
       install_requires=[],
       entry_points={'console_scripts':[
           'cris_tar2h5 = intercal.cris_tar2h5:main',