Adds Trove classifier for Python 3.5

setup.py

@@ -67,6 +67,7 @@ classes = """
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.3
     Programming Language :: Python :: 3.4
+    Programming Language :: Python :: 3.5
     Programming Language :: Python :: Implementation :: CPython
     Programming Language :: Python :: Implementation :: PyPy
     Programming Language :: Python :: Implementation :: Jython