tor-browser-bundle.git author: Georg Koppen <gk@torproject.org>
tor-browser-bundle.git commit: 515f9581b36e87d8180d2e74d57a9aed11d7c1e2

Doing changes corresponding to #10369.

This will allow sharing more containers between components, where the
default list of packages is enough.

Install hardening-wrapper, since the compiler setup on Linux requires
it.

Use #!/bin/bash rather than #!/bin/sh in the build scripts since the
compiler setup use bash specific commands.