changes from 0.4.9 to 0.4.10:
- if unit control is active, don't run the runtime logic for assemblers squad management/merging/retreat and assembler-centric targetting,
and don't run the squad logic at all. This should help in-progress games which add unit control halfway through.
- added ai_settings to all droid units and flying units to try to prevent units from being deleted if they fail a command, and for them to attempt to spread out from eachother and not stack up.
