tree 622d505667c6c6d83c1a8e5a14acbea06965a8de
parent 148f5e1036f1dc2e5bb6904e6b8f046233b214b7
author Tony Mack <tmack@tux.cs.princeton.edu> 1417379615 -0500
committer Sapan Bhatia <sapanb@cs.princeton.edu> 1419015491 -0500

introduce Controller model