keep generated setup.py stencil w/correct permissions

Author: benkamphaus

setup.py

@@ -16,10 +16,9 @@
 
 from setuptools import setup, find_packages
 import subprocess
-revision = subprocess.check_output("./bin/revision")
 
 setup(name="transit-python",
-      version="0.8."+revision,
+      version="0.8.279",
       description="Transit marshalling for Python",
       author="Cognitect",
       url="https://github.com/cognitect/transit-python",