Update 13.6

FEATURES
- new law "Central bank" and 2 articles
- new rule "Morality" to reduce or disable immoral activities
- new rule "All researches" for kickstarter backers
- new difficulty setting for ingame relations

IMPROVEMENTS
- general rebalancing
- ingame economy improvements

FIXES
- speaker powers could not be used
- some mistakes in localizations
- fixed a bug in thoughts system
- fixed a bug in party relation system