Hotfix 0.7.5.2

Hotfix 0.7.5.2 [list] [*]Fixes a bug in transporters orders when workers were stuck without getting the full load. [*]Fixes a bug in builder menu not displaying correctly multiple building materials. [*]The lower setting for visible agents (citizens on the streets) have been revised for better results, specially when loading a city with that was saved with a different setting. [/list]