Removes a very large amount of world loops.
Adds a macro to painlessly generate a global list, and the needed code to modify the list when an object is made or deleted automatically.
Cleans up some commented out code.
* Fixes#4632.
* 1:27 am coding best coding
* fixes a warning
* Removes the last of the gender macros. Gender is dead.
* gender II: the travis-ing
* linebreaks are dead too.
* oops i accidentally the gender, also ambiguous gender is now taken into account for get_visible_gender
