CrossShift+ bug fixes and additions

+ decrease bounce to half (shifting pieces makes display depth wrong)
+ delay at start of horizontal row (possibly re-moving pieces to start locations)
+ delay when 4-only rolls should be zero

+ give the option to return to start position (just don't make it valid)
+ visual dice roll
+ visual current player
victory screen
+ capture is different color bar (yellow?)
forfeit key
+ undo key
rules panel