set upcoming version 0.3.1

0.2.1-0.2.2

Fixed LintCode analyzer issues (#178)

* Fixed analyzer issue, fixed linter

* Fixed LintCode issue

* Fixed LintCode issue

* Fixed pubspec

* Try to update analyzer version

* Try to override analyzer dependency

* Add import as instead of hide

* Fixed tests fpr custom linter to work correctly

Fixed analyzer issue, fixed linter (#177)

0.2.0

Change default value of `cyclomatic_complexity` rule to 10.

Bump version to 0.1.4, upd changelog (#133)

* Update pubspec.yaml version to 0.1.4

* Update CHANGELOG.md