Updated the information in setup.py.

setup.py

@@ -4,12 +4,13 @@ setup(
     name="grext",
     version="0.4.1",
     packages=find_packages(),
-    install_requires=["numpy", "scipy", "pytest"],
-    author="Michele Nottoli",
+    install_requires=["numpy", "scipy"],
+    tests_require=["pytest"],
+    author="Michele Nottoli and Benjamin Stamm",
     description="Tools for generating new guesses for SCF calculations.",
     classifiers=[
         "Programming Language :: Python :: 3",
-        "License :: OSI Approved :: MIT License",
+        "License :: OSI Approved :: GNU Lesser General Public License v3 (LGPLv3)",
         "Operating System :: OS Independent",
     ],
 )