Perform a 1.0.18 Release

See #92, release log:

• 808db46 by @Ardesco: Fix typos
• 04616c7 by @Ardesco: Remove directory creation
• 8959346 by @Ardesco: try forcing files into expecte...
• daf8a70 by @Ardesco: Add some debug logging to rult...
• 35990d0 by @Ardesco: Try new key generated in Linux
• 0a06b6e by @Ardesco: Another re-encryption
• 089c98e by @Ardesco: Try with subkey
• b713429 by @Ardesco: Change gpg key location
• a7559e9 by @Ardesco: Try yegor256/rultor-image cont...
• 07ea89e by @Ardesco: Try yegor256/java8 container
• a73ff9b by @Ardesco: Try velo/rultor8 container
• d05dbc9 by @Ardesco: Try an explicit plugin reposit...
• 3b6485c by @Ardesco: Move explicit central definiti...
• 29fa5a3 by @Ardesco: explicitly define HTTPS maven ...
• 46394cc by @Ardesco: Set release profile for the ve...
• dbd952d by @Ardesco: Explicitly add versions maven ...
• e31c00c by @Ardesco: Try a different docker image
• 436731e by @Ardesco: Add in full path of settings.x...
• ebdfc8b by @Ardesco: Add back previous GPG setting.
• 66ecaa2 by @Ardesco: Try re-encrypting with upperca...
• and 20 more...

Released by Rultor 1.68.9, see build log