small fixes

MANIFEST.in

@@ -2,6 +2,7 @@ graft tests
 graft pyrost/config
 graft pyrost/bin
 graft pyrost/ini_templates
+graft pyrost/data
 exclude dev.pyx
 include pytest.ini
 include LICENSE

setup.py

@@ -52,7 +52,7 @@ setup(name='pyrost',
       url="https://github.com/simply-nicky/pyrost",
       packages=find_packages(),
       include_package_data=True,
-      package_data={'pyrost': ['config/*.ini', 'ini_templates/*.ini']},
+      package_data={'pyrost': ['config/*.ini', 'ini_templates/*.ini', 'data/*.npz']},
       install_requires=['h5py', 'numpy', 'scipy'],
       extras_require={'interactive': ['matplotlib', 'jupyter', 'pyximport']},
       ext_modules=extensions,