PR #191 - Merge https://github.com/rpodgorny/attic into merge

.gitignore

@@ -6,6 +6,10 @@ env
 .tox
 hashindex.c
 chunker.c
+crypto.c
+platform_darwin.c
+platform_freebsd.c
+platform_linux.c
 *.egg-info
 *.pyc
 *.pyo