Add new vacation type: Exception
Add new vacation type: Exception

This type is for events which are not covered by other types:
like wedding, funeral, etc.

User must provide a reason when requesting an Exception request,
the reason is displayed to manager/admin and exported to the csv.

sayoun/pyvac,doyousoft/pyvac,sayoun/pyvac,doyousoft/pyvac,sayoun/pyvac,doyousoft/pyvac