fixes lastknown on death
this should be safer
Fixes make reset to clear all gamestates
Adds option to reset gamesave data and exit
Fixes key mapping for options screen
Merge pull request #1247 from jhoff/reset_gamesave

Adds option to reset gamesave data and exit
Merge pull request #1238 from CalebJohn/lastknown

Sets value on a nil lasknown