ide: codeeditor showActiveLine on/off option
halos: fix for copying selection/disappearing morphs via halo item
l2l: smarter getSessions
l2l: getUserInfo, simpler interface to getSessions
l2l: sessiontracker init in one place
buildpsec: fix for layout prop
l2l: messageNotUnderstood action
l2l: preliminary chatMessage action
l2l: Lively2LivelyChat widget