Version 1.4
Balance adjustment for faith conversion:
- Gold base cost 150 > 0
- Piety now scales on hoder's tier 50/100/150/250

Balance adjustment for culture conversion:
- Gold base cost 250 > 100
- Prestige base cost 250 > 350

Version 1.3
Refactored the interaction popup to include a county selector; and reworked the checks done on county/holder eligibility.
Added back actions from character's interaction list.

Version 1.2
Removed unwanted actions from character's interaction list.

Version 1.1
Allow now to convert counties the player owns.