Travis: Execute 'arakoon.native --run-all-tests'
Travis: Execute 'arakoon.native --run-all-tests'

Since we no longer need to build OCaml from source, we might have time
to run some real tests now within a TravisCI job slot.

Incubaid/arakoon,openvstorage/arakoon,Incubaid/arakoon,openvstorage/arakoon,openvstorage/arakoon,Incubaid/arakoon