Remove unused marker interaction module
Code cleanup
Change large popup text to name settlement, rather than village, and include the nationality
Change the way popup positioning is calculated
Before: every time the map moved the popup would switch around to stay on screen
After: the popup moving all the time was confusing. It's position is calculated when it is first shown, to that it is on screen, and it stays in that position
Stop featured markers bouncing once you have hovered over one of them.
Make markers stay "grown" whilst you are hovering the popup, and shrink them back down when the popup closes