Prevent empty heritages from populating ruler designer

Author: LT-Rascek

ChangeLog.txt

@@ -16,7 +16,7 @@ Culture:
       - For the Jews in Gaul and France
       - Pillars: Israelite Heritage, Latin Language, Cosmopolitan Ethos
       - Traditions: Diasporic, Philosopher Culture, Mobile Guards, Caravaneers, Religion Blending
-- Changed some langauges at start for various Jewish minorities:
+- Changed some languages at start for various Jewish minorities:
    - Kochinim uses Tamil Language instead of Hebrew Language
    - Sephardi uses Latin Language instead of Hebrew Language
 - Added new name lists for Romaniote, Tzafarti, Sephardi
@@ -181,6 +181,9 @@ Bug Fixes:
 - Fixed Zeno's armies starving to death
 - Fixed up heritage and linguistic drift spamming too much and hanging a bit
 
+Tweaks:
+- Heritages without any cultures at a bookmark will no longer be shown in the Ruler Designer GUI
+
 Localization:
 - Added a number of new culture localizations for titles
 - Re-localized "Monasticism" to "Congregational Monasticism"