WIP: convert array:array/0 type specs to array:array/1
convert array:array/0 type specs to array:array/1
Fix erltrek_setup:init_quad/1 to return {default, q_empty}
erltrek_setup: fix too restrictive type specs
erltrek_setup: add type specs to init_sect/0 and init_quad/0
erltrek_galaxy:update_sector/3: fix type spec