Make more commands builtin

 Makefile                               |   26 +++++++++++++++-----------
 apply.c => builtin-apply.c             |    3 ++-
 commit-tree.c => builtin-commit-tree.c |    3 ++-
 diff-files.c => builtin-diff-files.c   |    3 ++-
 diff-index.c => builtin-diff-index.c   |    3 ++-
 diff-stages.c => builtin-diff-stages.c |    3 ++-
 diff-tree.c => builtin-diff-tree.c     |    3 ++-
 ls-files.c => builtin-ls-files.c       |    3 ++-
 ls-tree.c => builtin-ls-tree.c         |    3 ++-
 read-tree.c => builtin-read-tree.c     |    3 ++-
 show-branch.c => builtin-show-branch.c |    3 ++-
 tar-tree.c => builtin-tar-tree.c       |    3 ++-
 builtin.h                              |   12 ++++++++++++
 git.c                                  |   13 ++++++++++++-
 14 files changed, 61 insertions(+), 23 deletions(-)

Junio, I've formatted this batch of patches with -M, so
they are easier to read.  It seems there were some problems
with sending the last batch (patch 1 and 6 hasn't arrived),
but this should work, since I tested it by sending the
batch to myself first.

Sorry for the noise.

Regards,

Peter Eriksen