Add support for title attribute and some code cleanups.
lifted parse_team_overlays from game_display to display.

This is part of makeing [item] and other overlays work in the editor.
Fix clearing the file handle at the wrong location.
LoW 3,7,10 map updates.
LoW 1: Start gold adjusted.
LoW 4: Loyal units for Cleodil.
LoW 7: Fix side setup. Disable AI controller.
Place not only image [item]s but also halo= ones.
Display the halo in the editor item palette if no image provided.
Grouped the map generators into a folder and added the yamg.