`(number 0).is-int` returns FALSE

See #31, release log:

• 78b9b0e by @rultor: Merge branch '__rultor'
• 534ef7b by @maxonfjvipon: fixed test description
• 5c8fae1 by @Graur: change java version from 13 to...
• 482efd1 by @Graur: version of qulice is up to 0.2...
• 19f429f by @Graur: fix
• beec639 by @Graur: include checkstyle
• 11bb133 by @Graur: exclude checkstyle
• 589a6d7 by @Graur: EO version UP
• a94b881 by @Graur: Merge branch 'master' into fix...
• ff13e0d by @Graur: add encoding in pom.xml
• d2f0931 by @Graur: fixed build fail on Windows
• a63f264 by @maxonfjvipon: #31 fix tests
• a50596b by @maxonfjvipon: #31 implemented as 0.eq 0.0 ...
• dda9c76 by @yegor256: actions
• cf0d326 by @yegor256: typo
• 51060cf by @maxonfjvipon: #31 improved performance in nu...
• 269c314 by @maxonfjvipon: #31 improved performance in nu...
• 58afae1 by @maxonfjvipon: #31 fixed finally block in is-...
• b15ffb9 by @maxonfjvipon: #31 fixed is-int, is-float, ab...

Released by Rultor 2.0-SNAPSHOT, see build log