Simplified suicide exemption check & -self.playersExemptFrom...

Removed: DieAnotherDay.playersExemptFromSuicideElimination[]

I've also possibly fixed the severe rare bug I created issue #11 for.
Removed function & calls to it: eliminatePlayer()

Its player tracker variable changing statement is now executed in the only the function which called eliminatePlayer()
Removed the statements for an unused player tracker variable

The statements were removed for "elimination_cause".
Merge pull request #17 from JASheppard/suicideEliminationExemptionFlawFix

Suicide elimination exemption flaw fix

Removed the need for: DieAnotherDay.playersExemptFromSuicideElimination[]

I've also possibly fixed the severe rare bug I created issue #11 for.