Simplified XgetRootdir.
Updated dagaddr to recognize user defined XIDs.
Updated xroute to recognize user defined XIDs.
Make click recognize user defined XIDs.
Added example user defined XID conf file.
Removed debug code.
Added instructions on how to add an XID.
Forgot to check for non-existant file.
Added default fallback step for adding a new XID.
Merge branch 'extend' into develop