Ver 1.7.3 2019-01-07 Vasilij Schneidermann
   Fix errors when used with persistent undo
Ver 1.7.2 2018-01-05 Vasilij Schneidermann
   Fix byte-compiler warnings again
Ver 1.7.1 2017-12-31 Vasilij Schneidermann
   Fix byte-compiler warnings
Ver 1.7 2017-09-17 Vasilij Schneidermann
   Make it work with undo-tree-mode (see
   <https://github.com/martinp26/goto-chg>)
Ver 1.6 2013-12-12 David Andersson
   Add keywords; Cleanup comments
Ver 1.5 2013-12-11 David Andersson
   Autoload and document `goto-last-change-reverse'
Ver 1.4 2008-09-20 David Andersson
   Improved property change description; Update comments.
Ver 1.3 2007-03-14 David Andersson
   Added `goto-last-change-reverse'
Ver 1.2 2003-04-06 David Andersson
   Don't let repeating error depthen glc-probe-depth.
Ver 1.1 2003-04-06 David Andersson
   Zero arg describe changes. Negative arg go back.
   Autoload. Remove message using nil in stead of an empty string.
Ver 1.0 2002-05-18 David Andersson
   Initial version
