increase megalure frequency

add z:DoZombieStats() to behavior functions

improvements by forcing zombies to path to close buildings
alternate megalure function

fixed major issue where the zombies were not truely being drawn inside due to null squares.

Added function to wake zombies if they are hit.
Vastly improved performance by only adding the buildings to an array instead of every inside square. Draw zombies based on random square in building function.

initial. pushed to git as 1.1