Update Python version support for pypi

Author: effigies

nibabel/info.py

@@ -89,7 +89,10 @@ def cmp_pkg_version(version_str, pkg_version_str=__version__):
                "Intended Audience :: Science/Research",
                "License :: OSI Approved :: MIT License",
                "Operating System :: OS Independent",
-               "Programming Language :: Python",
+               "Programming Language :: Python :: 2.7",
+               "Programming Language :: Python :: 3.3",
+               "Programming Language :: Python :: 3.4",
+               "Programming Language :: Python :: 3.5",
                "Topic :: Scientific/Engineering"]
 
 description = 'Access a multitude of neuroimaging data formats'