Add priority to configuration file argument handler.
Add priority to configuration file argument handler.

jubianchi/atoum,gpaton/atoum,CedCannes/atoum,tejerka/atoum,agallou/atoum,Tiross/atoum,vonglasow/atoum,GuillaumeDievart/atoum,CedCannes/atoum,Tiross/atoum,GuillaumeDievart/atoum,vonglasow/atoum,mageekguy/atoum,tejerka/atoum,jubianchi/atoum,mageekguy/atoum,gpaton/atoum,mikaelrandy/atoum,mikaelrandy/atoum,agallou/atoum