PoW

See #20, release log:

• 116b40c by @yegor256: #20 propagate
• adb4795 by @yegor256: #20 typo
• 12f5bae by @yegor256: #20 best score
• 82553db by @yegor256: #20 remote reset
• f189497 by @yegor256: #20 remote reset
• 3b15f76 by @yegor256: #20 remote reset
• cd9b2d8 by @yegor256: #20 zero threads
• 78368aa by @yegor256: #20 one thread
• 5f283ab by @yegor256: #20 scripts
• 7306087 by @yegor256: #20 push
• fc9ede6 by @yegor256: #20 header
• 3a440c4 by @yegor256: #20 Score::ZERO
• f607b91 by @yegor256: #20 remotes
• 908d001 by @yegor256: #20 facter
• 5e18313 by @yegor256: #20 haml removed
• b3e9539 by @yegor256: #20 /score removed
• 87ad4ac by @yegor256: #20 pretty json
• 8bf27ab by @yegor256: #20 only JSON
• 0d22223 by @yegor256: #20 logging fixed for sinatra
• 88a112b by @yegor256: #20 fake node
• and 61 more...

Released by Rultor 1.67.3, see build log