ca-certificates are needed to successfully pull https urls (#454)
ca-certificates are needed to successfully pull https urls (#454)

This is now enforced in python 2.7.9 and higher (packaged by default in xenial). This means that rosdep cannot run init or update w/o ca-certificates installed which makes it a dependency.

Without this our bootstrapping instructions fail on xenial
spaghetti-/rosdep,ros-infrastructure/rosdep,spaghetti-/rosdep,allenh1/rosdep,ros-infrastructure/rosdep,allenh1/rosdep