[Added] The distance from a lair that mobs will spawn within is now the
lair spawn's size rather than a static number
[Added] A lair spawn's size is now considered when determining spawn
location (larger lair spawns require more distance from other objects)

Change-Id: I8b512b36e3e956954e636bfe1ab1c0c8286814f2
[Reduced] chance for babies to spawn with lairs
[Added] babies will spawn at mission lairs again but with a reduced
chance

Change-Id: I4aab7dc8f7d53f01baf77dae4f40705042592775
Merge "[Added] The distance from a lair that mobs will spawn within is now the lair spawn's size rather than a static number [Added] A lair spawn's size is now considered when determining spawn location (larger lair spawns require more distance from other objects)" into unstable
Merge "[Reduced] chance for babies to spawn with lairs [Added] babies will spawn at mission lairs again but with a reduced chance" into unstable