Cities you haven't bombarded with will auto-bombard at turn end

Defeated (no units/cities) hotseat multiplayer no longer appears for turns ("player X ready")

Console: Nicer available command display

By willjallen:
- Add tech queuing on right-click / doubleclick

By tuvus:
- Initial AutoPlay implementation
- Fixed exploration for automated units

By SomeTroglodyte:
- Wesnoth map import polished up
- City sounds again

Fix founding cities removing city center tile improvement  - By SeventhM