Resolved  - Undo button in Multiplayer no longer changes 'next turn' button

4.7.15-patch1

By SomeTroglodyte:
- Fix minimum votes needed for a diplomatic victory 
- Consistent UTF-8 where possible 
- Victory illustrations 
- Fix missing DiplomaticVotePickerScreen link in NextTurnAction 
- Fix AutoScrollPane to not steal focus when disabled 

Add option to Enable/Disable unit upgrades for automated units  - By jlmcdonnell

Visual indicator for building outside workable tiles 9486  - By huckdogg

By SeventhM:
- Refactor: Move checking targets from automation to logic 
- Additional unit tests 
- Fix City-States giving untradeable resources 

Fix docker badge  - By cxong