With rbm#40029, container/remote_* is now added directly to rbm, so we
can remove it from rbm.conf.

We also need to rename a few options:
- var/container/use_container -> container/use_container
- var/container/global_disable -> container/global_disable
- var/container/disable_network -> container/disable_network
- var/container/dir -> container/dir

In #40240 we found that package updates were not installed in containers
created using debootstrap, but are now installed in the containers
created with mmdebstrap. Some of those updates are causing differences
in the build of some components.

To be able to build both the stable and master branches from the same
tor-browser-build directory without sharing containers, we update the
filenames of all containers.

Bug 40169: Update apt package cache after calling pre_pkginst, too

The creation of some project containers require an updated apt cache
before executing pre_pkginst, while others require updating the apt
cache after executing pre_pkginst.

Thanks to boklm for the suggestion in #23631

Additionally, we clean up our projects removing Linux workarounds not
needed under Jessie anymore.

We do that by adding support for a no_containers target which defines
the new option var/container/global_disable in rbm.conf. We already had
the option var/container/use_container doing something similar to this
new option, however it can not be overriden in rbm.conf as we define it
in each project's configuration, which has priority over rbm.conf.

Update rbm to set DEBIAN_FRONTEND=noninteractive when using apt-get in
install_package.

Also set DEBIAN_FRONTEND=noninteractive for the other apt-get commands
we use in debootstrap-image and container-image.

We now also use the -q (quiet) argument.

Remove support for precise and utopic.