Now parsing action-defaults. These are not actually being used yet, however.
Fixed bug causing certain items with duplicate ids to not be picked up. Removed AgentGame-class and previously added commands to advent.dat, as these extra commands already existed - albeit slightly hidden. There are no longer any ActionGame-type actions.
Removed some residue from the previous commit (remnants from the ActionGame-type). ActionInteract now supports multiple targets.
Resolved merge conflict. Temporary solution in interpretActionInteract().