Overview:
This function is fired when the Dipatcher receives a task sequence, and should return the output port that the Dispatcher will pass the tasksequence to. If 0 is returned, the tasksequence will automatically queue up according to the defined Queue Strategy until the tasksequence can be passed to an available Dispatcher or TaskExecuter. If a value greater than 0 is returned, the tasksequence will be sent immediately to the returned port number. If a value of -1 is returned, then the Dispatcher does nothing, but rather assumes all dispatch logic is done within the passto function using the movetasksequence() and dispatchtasksequence() commands.
Access variables:
tasksequence: a reference to the tasksequence node
current: the current object
