Adding the plot to plot_temp.txt file, hopefully for use tomorrow in class
Updated parser info
Added an attach(InteractionBuilder) method to Interaction, to make combining two interactions easier.
Added a boolean "delay" to the goal class, which determines whether the NPC should be removed immediately or delayed
Updated the delay code in Entity:
Methods are now removeFromGrid() and changeGrid(destination), with optional parameter boolean delay, which if true causes a delay.
changeGrid(destination, forced) has been renamed forceChangeGrid, and the boolean has been removed; it instead necessarily forces the change
changeGrid() has also been renamed forceChangeGrid