clean up the build

See #148, release log:

• abfeafa by @yegor256: #148 opt off
• 1da08fd by @yegor256: #148 java 11
• 95776d7 by @yegor256: #148 rultor
• 17dd168 by @rultor: Merge branch '__rultor'
• d19378c by @yegor256: #148 commons-io up
• ee35ad9 by @yegor256: Merge pull request #152 from y...
• 357ff8a by @yegor256: #148 saxon up
• e68989b by @yegor256: #148 aspects up
• bfcef9f by @renovate[bot]: Update dependency com.jcabi:jc...
• 9d5dcca by @renovate[bot]: Update dependency org.apache.c...
• f7c0543 by @rultor: Merge branch '__rultor'
• cda49b3 by @rultor: Merge branch '__rultor'
• 7ecfcf2 by @yegor256: Merge pull request #83 from ye...
• 066f393 by @yegor256: Merge pull request #138 from y...
• 4b28c1d by @yegor256: Merge pull request #139 from y...
• cdf7ddd by @yegor256: Merge pull request #141 from y...
• 4424656 by @renovate[bot]: Update dependency com.jcabi:jc...
• 3d796bb by @yegor256: Merge pull request #145 from y...
• fad4fab by @renovate[bot]: Update dependency com.jcabi:jc...
• be53034 by @yegor256: Merge pull request #143 from y...
• and 107 more...

Released by Rultor 1.75.1, see build log