built-in tar-tree and remote tar-tree

This makes tar-tree a built-in.  As an added bonus, you can now
say:

	git tar-tree --remote=remote-repository <ent> [<base>]

This does not work with git-daemon yet, but should work with
localhost and git over ssh transports.

Signed-off-by: Junio C Hamano <junkio@cox.net>

git.c

@@ -50,8 +50,10 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "count-objects", cmd_count_objects },
 		{ "diff", cmd_diff },
 		{ "grep", cmd_grep },
-		{ "rev-list", cmd_rev_list },
 		{ "init-db", cmd_init_db },
+		{ "tar-tree", cmd_tar_tree },
+		{ "upload-tar", cmd_upload_tar },
+		{ "rev-list", cmd_rev_list },
 		{ "check-ref-format", cmd_check_ref_format }
 	};
 	int i;