Revert "travis: use apt-get install since some packages are blacklisted by apt addons"
Revert "travis: use apt-get install since some packages are blacklisted by apt addons"

This reverts commit 2ca52a661e645ff9068ad87fbaa9bc4ab9e51d6f.

sileht/pifpaf,sileht/pifpaf,jd/pifpaf,sileht/pifpaf,jd/pifpaf