gnome-games: Fixes several crashes at start

This update fixes the following issues with gnome-games:
- bnc#825469:
+ bgo#701601: Always undo from the most recent move. (bnc#825469, bgo#701601)
+ bgo#578130: Fix massive CPU usage after starting a new game.
+ bgo#701705: Stop the chess clock when ChessGame is freed.
+ prepare the preview surfaces before the board is shown. Without this, the game crashes upon starting most notably on 32-bit machines.

Fixed bugs
bgo#578130
Chess AI (gnuchess) uses maximum CPU which drains battery
bgo#701601
Undoing move while showing previous move causes a segmentation fault
bgo#701705
Playing chess with limited time crashes it with segfault
bnc#825469
Gnome game Five-or-more (glines) crashes upon start
Selected Binaries
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