Implemented run-time process factory #10
Implemented run-time process factory #10
Renamed constructor argument to avoid collision with IIP term.
Built-in Wait() method for graphs so that it doesn't need to be implemented by hand every time the caller goroutine needs to wait until the network finishes its job.
Merge branch 'runtime_manipulation' of github.com:trustmaster/goflow into runtime_manipulation

Conflicts:
	factory.go
Implemented IIP support #15 and JSON graph format support #7
Fixed a data race in the TestConnection() test