Added code to:

Build cybernetics core.
Build to prevent further gateways until a supply is met.
To train dragoons.
Tidied up code to make the program flow better

Added some more managers - Army and Building - Use these!!
The entire army (not inc. workers) will now attack when there are 10, 30, 60 or over 100 units in the army.
Tested the bot against the default AI. We beat terran, protoss and zerg quite handily :D