Tweaked religious authority defines: A New Hope

Catholics are still pretty boned when the antipope arrives a few short years after start, but dangit, they ain't so boned as to immediately begin the plunge into a downward spiral from which they will never return.

I was also trying to work on the Sunni RA problem in 1066 starts, which should now at least have improved. Worked on a few different approaches, but only 3 tweaks were required.  Current release is pretty rampant with heresy instability. Hopefully this is enough of a push in the right direction.

 + AUTHORITY_FROM_ANTIPOPE = -0.2 (from -0.3)
 + AUTHORITY_FROM_RELHEAD_HOLY_SITE = 0 (from 0.05)
 + AUTHORITY_FROM_ORG_RELIGION = 0.3 (from 0.2, most balanced way to account for the loss due to PB's halved controlled-holy-sites bonus)

Only tested with observes from 1066 on SWMH.