allow more flexibility between viewcontrollers, also added stub pages for saved games

Engine: * New Lua script call: GetGearMessage(gear : integer) : integer - retrieves gear's "message" parameter (can be used with flags like gm_Left or gm_Attack (logic AND) to check for player input; untested!)

initial support for savegames

Extend time limit to 9999, remove ready timer if time is over 999 and stop drawing time if it is over 999 (draws wrong over 999 anyway) - this has the effect of allowing an "unlimited" time appearance if turns are over a quarter hour or so. This can be used to add an unlimited time scheme or button to ipad