Ensure that booleans are present

They should have a value of true or false
Make booleans have default values of false
Remove unused actions
Utilize TimeDifference better
Revert "Ensure that booleans are present"

This reverts commit 84ab25105181abed484a25e1a9b536b4b9bf5fb4.
Allow terminators to view the teams they are terminating
Strikethrough user name if killed
Rename some enums, add readable_kind method
Add kill method to User
Add description of how user died