Adding Port class...
debugging...
Merge branch 'master' into ports
Merge branch 'master' into ports

Conflicts:
	js/floss.js
Merge branch 'master' into ports
Merge branch 'master' into ports
fixing ports...
Wrote dragtimePortUpdate method.
deployed port udpate in move nodemousemove and segmousemove methods.
Wrote update of A's port in NSC collapse method.
Made Edge.redraw no longer request update of ports.
debugged