0.2.0

Added

• Numeric proxy_pass targets from 200 through 599 for routes that return
  a fixed HTTP status without contacting an upstream.
• Built-in HTML status pages, including a dedicated 403 Forbidden page, for
  fixed response routes.
• log_file and log_level configuration options with append-mode file
  output, severity filtering, and hot reload support.
• --log-level CLI override with support for DEBUG, INFO, WARN, and
  ERROR.
• Multiple independent HTTP and TLS listeners in configuration directories.
• Top-level host routing for the short proxy_pass form, including safe
  $host substitution from the configured route host.
• config_file context on every operational log record.

Changed

• Startup summaries now show fixed response targets and the effective logging
  destination and level.
• --log-level takes precedence over --debug, which takes precedence over
  log_level from YAML.