Merge pull request mbj#111 from mbj/remove/version-requirement

Remove ruby version requirement in gemspec

Merge pull request mbj#110 from mbj/bump/version

Change version to 0.4.1

Merge pull request mbj#101 from mbj/add/modern-ast-support

Add modern ast support

Merge pull request mbj#92 from mbj/bump/version

Bump version to 0.3.0

Merge pull request mbj#76 from mbj/fix/bump-to-0.2.6

Bump to 0.2.6

Prepare changelog for 0.2.5

Prepare changelog for 0.2.5

Bump version to 0.2.4

Prepare v0.2.3

Prepare v0.2.2