first part of MIDI cut/copy/paste ; fix for input/output_streams of an IOProcessor being reported in a misleading way; in/out translation fix from 2.X, sort of

git-svn-id: svn://localhost/ardour2/branches/3.0@5510 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/ardour/processor.cc

@@ -232,6 +232,8 @@ Processor::configure_io (ChanCount in, ChanCount out)
 	_configured_output = out; 
 	_configured = true;
 
+	std::cerr << "******* CONF IN for " << _name << " set to " << in << std::endl;
+
 	ConfigurationChanged.emit (in, out);
 
 	return true;