Fix encoding issue in the init subcommand (fix #50).

tests/test_cli.py

@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+
+import os
+from sigal import init
+
+
+def test_init(tmpdir):
+    config_file = str(tmpdir.join('sigal.conf.py'))
+    init(path=config_file)
+    assert os.path.isfile(config_file)