Merge branch 'master' into next

Merge branch 'master' into next

* master:
  git-fsck-objects is now synonym to git-fsck
  [PATCH] Rename git-repo-config to git-config.
  Heavily expanded update hook to send more useful emails than the old hook
  UNIX reference time of 1970-01-01 00:00 is UTC timezone, not local time zone
  Teach for-each-ref about a little language called Tcl.
  Add a sample program 'blameview' to show how to use git-blame --incremental
  git-push through git protocol
  Document 'git-blame --incremental'
  Documentation/config.txt: Fix documentation of colour config tweaks.
  wt-status: Actually accept `color.status.BLAH' configuration variables.
  git-blame --incremental: don't use pager