This update provides Machinery 1.16.4, which brings the following fixes and
enhancements:

- The unmanaged-files scope filter will not include "/boot" by default anymore.
- Fix crash during image build on SLES 12-SP1.
- Reduce version restrictions for gems to the major version. (bnc#961176)
- Remove concept of "supported systems" in favor of letting Machinery run everywhere.
Whether a system can be built, exported, etc will be validated from its related
task by checking if the proper tooling is installed.
- Remove hint for `show`, when `inspect-container` is run with `--show` option.
- Rephrase the startup messages and warn messages when starting the HTTP server for
compare, show, or serve system descriptions.
- Change `serve` command to always list all system descriptions.
- Fix crash when the user does not have enough permissions to create the image
directory for the `build` command.
- Fix wrong hint for docker containers while running `analyze` command.
- Add a new hint when using the `--public` option for the `serve` command that it
makes all descriptions publicly available.
- Fix Machinery failing to inspect changed config files in case of restrictive
permissions.
- Remove hint for `show`, when `inspect` is run with `--show` option.
- Fix repository inspection on hosts that have a LANGUAGE variable set.
- Empty scopes now display a message in HTML and CLI views.
- Fix SLES 11 SP4 inspector output to be similar to SLES 11 SP3.
- Fix AutoYaST export on openSUSE Leap and Tumbleweed.
- Allow building of openSUSE Leap and Tumbleweed on openSUSE Leap and Tumbleweed.
- Allow building of SLES 11 and SLES 12 on openSUSE Leap.
- Add HTML landing page, which lists all system descriptions on your system.
This update was imported from the SUSE:SLE-12:Update update project.