fail if 'deploy' section is absent in '.rultor.yml'

See #1379, release log:

• 1fdbfef by @yegor256: #1379 set "started" first
• 6062592 by @yegor256: #1379 TimeAgent
• 758f32c by @yegor256: #1379 check for empty dir
• 40d6271 by @yegor256: #1379 print directory
• 851720e by @yegor256: #1379 MkdirDaemon introduced
• 7b0da4f by @yegor256: #1379 cleanup
• 61fa3d9 by @yegor256: #1379 careful with repo descri...
• 917b827 by @yegor256: #1379 ping
• f947ff8 by @yegor256: #1379 DropsDaemon fixed
• c8e5ad1 by @yegor256: #1379 DropsDaemon
• 55dbfff by @yegor256: #1379 DropsTalk introduced
• 2aa67d3 by @yegor256: #1379 DismountDaemons introduc...
• ceb4c04 by @yegor256: #1379 extra test
• c0a802e by @yegor256: #1379 test enable
• fc30f81 by @yegor256: #1379 show talk numbers
• 94d5f02 by @yegor256: #1379 log all talks
• ed18250 by @yegor256: #1379 wrong exception
• 5b69ccf by @yegor256: #1379 print hostname
• 47347cc by @yegor256: #1379 fail on missing section

Released by Rultor 1.74.3, see build log