Modding: Added Human and AI filters, separated civFilter from nationFilter

By SomeTroglodyte:
- Patch for on-screen keyboard hiding pedia search results
- Rivers... Moddable Stats and Civilopedia
- World screen top bar scales down to available width
- "Civ destroyed" Notification includes location
- Lots of other issue fixes!

By tuvus:
- Fixed land/sea nukes trying to act like air units
- Fixed promise not to settle

Fix Multiplayer spectator ids not logging  - By SeventhM