Truce fix

Truce has been changed into a Personal Enchantment that prevents monster
attacks. If the player attempts to attack anyone (person or monster) the
Personal Enchantment is removed. Also, the spell is self-only. Players
will not be able to cast it on others.

Chalice Fix

Cannot be used by outlaws/murderers now, previously the chalice
prevented all non-angeled players from using it.

Also fixed some comments, and an in-game text message, to reflect the
change.

Revert "Chalice Fix"

This reverts commit 0aa7ea1b2917c67026804cc37f1186cfe0fd32b5.