Merge remote-tracking branch 'upstream/master'

* upstream/master:
  [Fix] Try to handle multiline history in a more sane way
  [Minor] Some output fixes
  [Feature] Add dot commands for lua REPL:
  [Feature] Fix task functions to work without rspamd_config
  [Fix] Fix REPL output
  [Feature] Add the initial version of LUA repl to rspamadm
  [Feature] Distinguish luajit from lua
  [Rework] Import linenoise for line editing
  [Minor] Use shorter keys for replies module
  [Feature] Add replies plugin