Added a setting to disable prisoner psionics. This setting is disabled by default (prisoners will cast their psionic abilities).

Fixed a bug where the improper training string would be displayed in some situations.

Fixed a bug where psions could spawn with zero essence.
Psi defense now scales the effects of psychic drones and soothes. Mind fortress disables these effects entirely.

Rephrased the description of Mind Fortress to make it more clear that it only prevents active abilities from being used by or on a psion.

Eltex gear can now be disassembled into Athenium when playing with Royalty, to help counteract the low chance of psychic artifacts appearing when Royalty is active.

Custom essence settings now work when a HediffDef has an empty label.

The Psi tab now indicates when research is needed to unlock abilities for a specific tier.

Colonists can no longer flee the map after being affected by Psi Storm.

Fixed an issue that caused Psi energy to be set to zero upon load for psions.
Fixed an issue that allowed a psion to get four energy and focus nodes when using dev mode.

New essence summary window which displays essence penalties and their overall sum. This window can be accessed by clicking on the essence value in the Psi tab of a pawn.
Various performance improvements.