Merge branch 'hotfix/update_kabal_version'

* hotfix/update_kabal_version:
  update gem
Merge branch 'release/0.2.6'

* release/0.2.6:
  add number validation
Merge branch 'release/0.3.0'

* release/0.3.0:
  add raises
Merge branch 'release/0.3.1'

* release/0.3.1:
  fix number comparison
fix tests
add float numbers
Merge branch 'hotfix/fix_tests' into develop

* hotfix/fix_tests:
  add float numbers
  fix tests