* IMPLEMENTED: Make DKIM selector configurable

  Closes issue #17

  Allow for configuration of the DKIM selector.

  A new option baruwa.dkim.selector introduced
  to allow configuration of DKIM selector.

Signed-off-by: Andrew Colin Kissa <andrew@topdog.za.net>
* FIXED: Error when adding address to approved/banned senders using an alias domain

  Closes issue #20

Signed-off-by: Andrew Colin Kissa <andrew@topdog.za.net>
* FIXED: Information Header Value not applying

  Closes issue #13

* FIXED: Make default settings match supplied
  mailscanner configuration file.

  Closes issue #17

Signed-off-by: Andrew Colin Kissa <andrew@topdog.za.net>