merge efcasado/eunit

commit 820259e87eabdd183e7aac038e4f133a0b441dc0
Author: Enrique Fernandez <efcasado@gmail.com>
Date:   Wed Dec 17 16:37:55 2014 +0100

    Fix return code

commit c6ce260cc77caf64cc1d869c4604efe66173d435
Author: Enrique Fernandez <efcasado@gmail.com>
Date:   Wed Dec 17 15:02:43 2014 +0100

    Remove implicit support for EUnit's report

commit a1d00c5657a4374f8a259aeb89e46f30fb041cca
Author: Enrique Fernandez <efcasado@gmail.com>
Date:   Wed Dec 17 14:58:14 2014 +0100

    Remove unneded printouts

commit aafd20ea2da3796e2b81067219d8add501dbf700
Author: Enrique Fernandez <efcasado@gmail.com>
Date:   Mon Dec 15 15:14:58 2014 +0100

    Add EUnit plugin