World wrap available by default for all players

Units are no longer double-added to construction when clicking the 'add unit' button

Units passed with 'next unit' are not returned to

By vegeta1k95:
- Corrected some Civilization colors
- Fix perpetual constructions info  ()
- Civ 5-style unit selection and cycling behaviour, "Wait" action

fix translation problem in policy screen  - By CrispyXYZ

fixed screens displaying yourself as an unknown civilization  - By alexban011