CleverRaven/Cataclysm-DDA — pull request #2174 by atomicdryad (2013-07-24 22:43:02+00:00)
Title: monster group coordinate confusion & npc spawn fix

+ overmap::monsters_at bounds checking is 0 - OMAPX*2 as per current
usage and monster_group data.
+ spawn_mon: Now implicitly uses square range checking for diffuse groups
+ overmap::is_safe multiplies arguments by 2, as per current usage
+ commented functions to document their differing coordinate arguments
npc spawn fix:
+ game::load_npcs was using rl_dist for bounds checking. Now uses square_dist
square_dist:
+ square dist is square. Always.