Fixed stockpiled resource trade not actually transferring

By SomeTroglodyte:
- Build weight unique for personalities 
- Fix flat earth map generation with no ice 

By Angais:
- Fix map notification tile selection 
- Fix options cleanup on outside close 

Replace arrow Unicode characters for wider compatibility - By cy-elec

By SeventhM:
- Fix uniques for losing hp missing full combat context

implement "other" parameter for mapunit - By O-spin

Fix inverted force-resign bank update - By L3odr0id

Clean up licensing information - By Wuzzy2