use py.test for testing
correct cffi dependency to setup_requires
ignore cffi, pycparser and pytest egg directories
add myself to AUTHORS.rst
diff --git a/AUTHORS.rst b/AUTHORS.rst
index 06e23d1..3438aa0 100644
--- a/AUTHORS.rst
+++ b/AUTHORS.rst
@@ -5,3 +5,5 @@
 * Hynek Schlawack <hs@ox.cx>
 * Donald Stufft <donald@stufft.io>
 * Laurens Van Houtven <_@lvh.io>
+* Christian Heimes <christian@python.org>
+