Console:
- Added set/remove tile improvement
- Show available commands on empty command
- Added add/remove for cities

By SomeTroglodyte:
- Fix OpenAL error Windows Events after application ends
- Tweak Language Pickers to scroll the selected one into view when appropriate, and allow selection with letter keys
- Modding: "Comment" unique
- Snappier sounds
- Fix City ambient sounds

Get distance to nearest enemy rework  - By tuvus