v1.5.0

New features:
- --walk-reflogs/-g has a special format, can be used without explicit --no-graph, added to --help

Bugfixes:
- remove_align_character in cmd_referencing_commits
  commit 89ee7679b2d92e032ac50f4993232bda29d455c2
- remove_align_character with --unreachable
  commit 8a557635bcdca9d14b3636dccaba6659a6fa857f

New settings:
- log-view.fmt.log
- log-view.fmt.reflog