Added policy variable for potential price control of ASP/NSP prices.
NSPs have a random starting location, and edge building stimuli are
ordered by proximity to this location where closer potential edge
locations are evaluated first.
NSPs can only build one edge network per time-step.  As soon as they
build one, they break out of the loop of evaluating potential locations.
Added price control variables to DomainModel.properties
Updates to baseline experiment configuration
Updated default size of grid to 7x7 and default # of NSPs to 7
BankrupcyException is now checked for and thrown BEFORE the amount is
charged against the agent's operating expenses.
Added variables for customer information (aspCustomers, nspCustomers,
and intersectionCustomers) and brief javadoc comments.
Added function to compute intersection of ASP/NSP customers
Added information to BackbonePurchaseStimulus; populated by ASP.  Also,
DirectASPIndividual now scales itself rather than relying on ASP to
scale its response.
Added information to ASP's PriceStimulus (numASPCustomers and
aspQuality)
Additional information for ASP PriceStimulus and QualityStimulus