Versions earlier than 1.6.1 were not properly recorded.

1.7.0 20020520
Improved the search/replace dialog (there's still room for more improvement though!) - makes better use of focus.
Removed bug in Shift-F5 code

1.7.1 20020521
Fixed silly bug in new search/replace code (which caused program crash on search failure!), and removed some screen flicker.
