Added scipy version requirement to have spline tests working

setup.py

@@ -25,8 +25,7 @@ setup(
     description="A web-based plot tool to visualize Earth core flows",
     long_description=open('README.md').read(),
     long_description_content_type='text/markdown',
-    install_requires=["tornado", "numpy", "scipy", "h5py"],
-    setup_requires=["tornado", "numpy", "scipy", "h5py"],
+    install_requires=["tornado", "numpy", "scipy>1.1", "h5py"],
     test_suite="webgeodyn.tests",
     include_package_data=True,
     classifiers=[