Fixes #36767 - use runuser instead of su to run rake

foreman-rake is designed to be run as root (and switch to foreman) or by
foreman directly. any other user can't use it as it is installed in sbin
and the foreman user has no password set, making switching users as non...

Fixes #26194 - Silence ruby warnings for foreman-rake

This commit adds the `-W 0` to ruby for foreman-rake

This will silence warnings for ruby. We already use the production
rails environment, which prevents rails warnings, but we don't alter
the logging for ruby, so ruby warnings are still visible...

fixes #17011 - refactor BUNDLER_CMD in foreman-rake

Fixes #15684 - foreman-rake without options raise an error

Fixes #14541 - foreman-rake must preserve environment variables

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

fixes #11170 - pass quoted args through foreman-rake

Use the special "$@" to correctly pass quoted arguments through
foreman-rake, through su and to the underlying rake command. Ensures
the JSON in this command is unharmed:

foreman-rake config -- -k trusted_puppetmaster_hosts -v '["foo.bar.com"]'...

fixes #2684 - add foreman-rake script to /usr/sbin