flatpak: update build-manifest to retrieve dependencies without initial download phase: - dependencies are now entirely retrieved from the installation, and requirement are build from there. The source package is currently always used, and it is now possible to use PYTHON_DEP_PREINSTALL to add extra packages or use a specific version of a package. - fixed insertion of `release_elt` for dev version at the right location. - `branch` is not set anymore for stable versions. - libxslt is not added anymore as it is part of freedesktop runtime - flathub share-modules is now used for Python 2

#!/bin/sh
# account domain is set, then sat is launched with D-Bus activated

# XXX: exec is not working with Docker and su here for whatever reason, so using trap/wait workaround
#      thanks to cuonglm for the tip (https://unix.stackexchange.com/questions/146756/forward-sigterm-to-child-in-bash/146770#146770)

on_sigterm() {
  /usr/bin/sat stop
  # to have a proper exit code
  exit $?
}
trap on_sigterm TERM

set_account_domain
eval $(dbus-launch --sh-syntax)
su -c "/usr/bin/sat $@" sat &
wait $!