[Rails-devel] Report window as game history

[Stefan F. <ste...@we...>]

The linked movesets in the CGR 1856 merger inspired a feature that proved to 
be surprisingly easy (as it leverages on the excellent move/state mechanisms 
in Rails). The downside is that it can be effected by the all undo related 
bugs, but the number of those was on the decrease lately.

The report window now acts as game history: There are hyperlinks for each 
action. Clicking on any of those lets Rails jump to that game situation (by 
calling undo repeatedly). Return to a later position is possible unless an 
action is taken (as it is the case for standard redo). I also added two 
buttons (<< and >>) to allow single-step moves.

The old report window (which is editable) can be activated via the 
Configuration menu (or setting report.window.type to static in the legacy 
configfiles). 

Stefan