Updated link to latest release.

Author: erocarrera

setup.py

@@ -83,7 +83,7 @@ def run(self):
     author = _read_attr('__author__'),
     author_email = _read_attr('__contact__'),
     url = 'https://github.com/erocarrera/pefile',
-    download_url='https://github.com/erocarrera/pefile/releases/download/v2017.5.26/pefile-2017.5.26.tar.gz',
+    download_url='https://github.com/erocarrera/pefile/releases/download/v2017.8.1/pefile-2017.8.1.tar.gz',
     keywords = ['pe', 'exe', 'dll', 'pefile', 'pecoff'],
     classifiers = [
         'Development Status :: 5 - Production/Stable',