[Commits] [wesnoth/wesnoth] 545936: Add an alterntive redo code (#934)

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/wesnoth/wesnoth
  Commit: 54593675f29c4a8b8b268791954c924103bc1f56
      https://github.com/wesnoth/wesnoth/commit/54593675f29c4a8b8b268791954c924103bc1f56
  Author: gfgtdf <daniel.gfgtdf at gmail.com>
  Date:   2017-02-19 (Sun, 19 Feb 2017)

  Changed paths:
    M src/actions/undo.cpp

  Log Message:
  -----------
  Add an alterntive redo code (#934)

that is simpler and doesn't require wml developers to use [on_redo], wrapped in a preference switch since its not completeley tested yet.