Merge branches 'jc/rev-list' and 'jc/pack-thin'

* jc/rev-list:
  rev-list --objects: use full pathname to help hashing.
  rev-list --objects-edge: remove duplicated edge commit output.
  rev-list --objects-edge

* jc/pack-thin:
  pack-objects: hash basename and direname a bit differently.
  pack-objects: allow "thin" packs to exceed depth limits
  pack-objects: use full pathname to help hashing with "thin" pack.
  pack-objects: thin pack micro-optimization.
  Use thin pack transfer in "git fetch".
  Add git-push --thin.
  send-pack --thin: use "thin pack" delta transfer.
  Thin pack - create packfile with missing delta base.

Conflicts:

	pack-objects.c (taking "next")
	send-pack.c (taking "next")

git-fetch.sh

@@ -320,7 +320,7 @@ fetch_main () {
     ( : subshell because we muck with IFS
       IFS=" 	$LF"
       (
-	  git-fetch-pack $exec $keep "$remote" $rref || echo failed "$remote"
+	  git-fetch-pack $exec $keep --thin "$remote" $rref || echo failed "$remote"
       ) |
       while read sha1 remote_name
       do