Merge branch 'jn/web'

* jn/web:
  gitweb: Make project description in projects list link to summary view
  gitweb: Use author_epoch for pubdate in gitweb feeds
  gitweb: Add author and contributor email to Atom feed
  gitweb: Add author and committer email extraction to parse_commit
  gitweb: Use git-show-ref instead of git-peek-remote
  gitweb: Do not use esc_html in esc_path