Atomicist events & traits, plus bug fixes

Added the Blessing of the Atom events for newborn Atomicists, plus 3
associated traits
Fixed unbalanced brackets in president_events.txt
Fixed some DLC checks in atomicist_events.txt
Fixed pilgrim traits disappearing after loading a save
Merge pull request #2 from SteelyGlint/master

Atomicist events & traits, plus bug fixes. Looks good from a review.