improve config file handling

snapraid-runner.conf.example

@@ -0,0 +1,37 @@
+[snapraid]
+; path to the snapraid executable
+executable =
+; path to the snapraid config to be used
+config = snapraid.conf
+; abort operation if there are more deletes than this, set to -1 to disable
+deletethreshold = 40
+
+[logging]
+; logfile to write to, leave empty to disable
+file = snapraid.log
+; maximum logfile size in KiB, leave empty for infinite
+maxsize = 5000
+
+[email]
+; when to send an email, comma-separated list of [success, error]
+sendon = success,error
+; set to false to get full programm output via email
+short = true
+subject = [SnapRAID] Status Report:
+from =
+to =
+
+[smtp]
+host =
+; leave empty for default port
+port =
+; set to "true" to activate
+ssl = false
+user =
+password =
+
+[scrub]
+; set to true to run scrub after sync
+enabled = false
+percentage = 12
+older-than = 10