feat(#197): --version, -v

See #198, release log:

• d75e415 by @h1alexbel: feat(#197): clean for check
• 270b8ca by @h1alexbel: feat(#197): tests
• 661bfc8 by @h1alexbel: feat(#197): --version, -v, old...

Released by Rultor 2.0-SNAPSHOT, see build log