0.4.2

Changes

• Workers handled in WorkerManager, subcomponent of UnitManager
• Assign unit creation to larva
• State machine for plans

Fixes

• Properly handle extractor creation
• Fix scout target assignments to prevent situation where units idle and do noyinth
• Fix queue deadlock that resulted in no hatcheries or units being made.

Regressions

• Drop Lair building
• Drop Sunken building