Fix issue with etesync-server.ini always being loaded.

Fixes #20.

etesync-server.ini.example

@@ -0,0 +1,10 @@
+[global]
+secret_file = secret.txt
+debug = false
+
+[allowed_hosts]
+allowed_host1 = example.com
+
+[database]
+engine = django.db.backends.sqlite3
+name = db.sqlite3