Added smarter A.I.

HUMANS
This one will force humans to play (if role selected defensive) to build walls if given enough time or build (if role selected military or offensive) to build alpha units.

BETA
No building restriction, all beta - heavy defense of base area with constant spreading for resources. Beta will build (if role selected, military, offensive) alpha unit and if set to build defensive will build walls if given enough time.

GOO
Every level 1 higher ground is now a retreat point for Goo if A.I. decides to retreat. Every level 1 area is potential Goo search area to reveal surroundings and position artillery.

SHROUD
Left untouched.