Reactivated wagic console in travis CI
Added some traces in the primitives and sets loading.
Adding traces for important directories.
More debug
I think I got it ... messy / not appearing at the end of folders in the
travis linux where it appears fine on mine :(
Deactivated part of the traces outputted by the testsuite to make Travis
happy.
Merge branch 'develop'

Activates full testsuite run in Travis CI. Travis will complain as soon as at least one testcase does not pass successfully after a new commit.