git-client: GitClient#getLastTag and ConventionalGitClient#getLastSemverTag methods are added. GitClient#getRawCommits ignore param is added. (#1217) (53254b3)
git-raw-commits: refactored to use @conventional-changelog/git-client (#1199) (ba03ffc)
git-semver-tags,conventional-recommended-bump: refactoring to use promises instead of callbacks (#1112) (1697ecd)
standard-changelog: use promises (#1111) (5015ab7)