Updated required version of keepers to 0.3.0.

setup.py

@@ -44,9 +44,9 @@ setup(name="ift_nifty",
       ]),
       include_dirs=[numpy.get_include()],
       dependency_links=[
-        'git+https://gitlab.mpcdf.mpg.de/ift/keepers.git#egg=keepers-0.2.0',
+        'git+https://gitlab.mpcdf.mpg.de/ift/keepers.git#egg=keepers-0.3.0',
         'git+https://gitlab.mpcdf.mpg.de/ift/d2o.git#egg=d2o-1.0.4'],
-      install_requires=['keepers>=0.2.0', 'd2o>=1.0.4'],
+      install_requires=['keepers>=0.3.0', 'd2o>=1.0.4'],
       package_data={'nifty.demos': ['demo_faraday_map.npy'],
                     },
       license="GPLv3",