improve node.is_connected()
improve node.is_connected()

jcpeterson/Dallinger,suchow/Wallace,Dallinger/Dallinger,suchow/Wallace,jcpeterson/Dallinger,Dallinger/Dallinger,jcpeterson/Dallinger,Dallinger/Dallinger,berkeley-cocosci/Wallace,jcpeterson/Dallinger,Dallinger/Dallinger,berkeley-cocosci/Wallace,Dallinger/Dallinger,suchow/Wallace,berkeley-cocosci/Wallace,jcpeterson/Dallinger