Merge branch 'jc/web-blame'

Merge branch 'jc/web-blame'

* jc/web-blame:
  gitweb: spell "blame --porcelain" with -p
  blame: Document and add help text for -f, -n, and -p
  gitweb: blame porcelain: lineno and orig lineno swapped
  Remove git-annotate.perl and create a builtin-alias for git-blame
  gitweb: use blame --porcelain
  git-blame --porcelain
  blame.c: move code to output metainfo into a separate function.
  git-blame: --show-number (and -n)
  git-blame: --show-name (and -f)
  blame.c: whitespace and formatting clean-up.
  Gitweb - provide site headers and footers
  gitweb: blame: Mouse-over commit-8 shows author and date
  gitweb: blame: print commit-8 on the leading row of a commit-block
  Revert 954a6183756a073723a7c9fd8d2feb13132876b0
  gitweb: prepare for repositories with packed refs.
  gitweb: make leftmost column of blame less cluttered.