Merge branch 'ps/history' into pw/replay-drop-empty

* ps/history: (186 commits)
  builtin/history: implement "reword" subcommand
  builtin: add new "history" command
  wt-status: provide function to expose status for trees
  replay: support updating detached HEAD
  replay: support empty commit ranges
  replay: small set of cleanups
  builtin/replay: move core logic into "libgit.a"
  builtin/replay: extract core logic to replay revisions
  The 15th batch
  t3650: add more regression tests for failure conditions
  replay: die if we cannot parse object
  replay: improve code comment and die message
  replay: die descriptively when invalid commit-ish is given
  replay: find *onto only after testing for ref name
  replay: remove dead code and rearrange
  The 14th batch
  The 13th batch
  config: use git_parse_int() in git_config_get_expiry_in_days()
  receive-pack: convert receive hooks to hook API
  receive-pack: convert update hooks to new API
  ...