hub 2.2.2

• Fix hub help browse
• Colorized Windows console
• Avoid depending on a hardcoded list of git global flags
• More efficient --noop detection
• Allow hub merge --ff
• Read $GITHUB_TOKEN environment variable and use as OAuth token, ignoring ~/.config/hub
• Cache current config after loading it from disk for the first time
• Handle git worktrees when computing the head repo
• Add hub version to crash report
• Enhance hub ci-status to consume combined statuses API endpoint
• Fix compare crash when used on a non-GitHub repo
• Ensure that project comparison is done case-insensitive