* develop:
  version 2.5.1
  Update readme with info about timeago and real time relative dates/times
  space
  load timeago locales
  Add timeAgo js
  add french to translations section of readme
  use prepare() for sql query. fixes #75.
  use init()-method instead of construct(). wrap some stuff in is_admin(). fixes #105.
  update readme
  add filter simple_history/user_logger/plain_text_output_use_you
  escape logger slug or logger would not show up in search