Updates license information to be more standardized

setup.py

@@ -22,7 +22,9 @@ setup(
     author_email="david@vaunt.eu",
     classifiers=["Development Status :: 4 - Beta",
                  "Intended Audience :: End Users/Desktop",
+                 "License :: OSI Approved :: BSD License",
                  "Programming Language :: Python"],
+    license="FreeBSD License",
     packages=["shreddit"],
     install_requires=["arrow", "backports-abc", "praw>=4", "prawcore", "PyYAML", "requests", "six", "tornado"],
     package_data={"shreddit": ["*.example"]},