Another set of bugfixes incoming - will obsolete previous saves again

WARNING: Due to some more big changes - this patch will obsolete previous saves again. ___________________________________________________________ - Fixed an issue where the game would crash when salvaging two entities one after the other. - Fixed an issue where loading a game would lose track of which grid positions you have visited. - Put the version number on the main menu screen - in the bottom right - Added some informational notes to the options menu. - Increased the amount of time ammo sticks around from killed crewmembers so ships can be boarded for ammo more intuitively. - Fixed an issue where the key binding to open the captain's menu would sometimes be replaced with the 'p' key instead of the default 'BACKSPACE' key. ___________________________________________________________ I'm going to make this build live at 2:00 AM CST 06/02/2017. Once again, continue to let me know of any problems you are having. If it is a crash - the best thing you can do is post your Windows crash log for me. If I can't figure it out with that then I'll probably ask for a save file.