Package sisyphus-mirror: Information

- Change the list of architectures synchronized by default:
  + add x86_32 (for old repo)

- New features:
  + New command-line options:
    + --link-list (ALT #31163)
- Update default rsync options:
  + add /files/.timestamp to include (ALT #31172)
- Change the list of architectures synchronized by default:
  + add x86_64-i586
  - remove x86_32

- Speed up stage of $mirror movement from temp dir to main dir.
- Use shell-getopt.
- Update messages style.
- sisyphus-mirror.spec: require rsync >= 3.0.2-alt0.2.M40.1.