Add Python 3.5 to list of Trove classifiers in setup.py

Author: edschofield

setup.py

@@ -106,6 +106,7 @@
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.3",
     "Programming Language :: Python :: 3.4",
+    "Programming Language :: Python :: 3.5",
     "License :: OSI Approved",
     "License :: OSI Approved :: MIT License",
     "Development Status :: 4 - Beta",