Removed confusing function "createConnector" and replaced it by appropriate calls to createLink or createSingleConnector with a continuation to createLink.
Removed confusing function "createConnector"
and replaced it by appropriate calls to createLink or
createSingleConnector with a continuation to createLink.

Also renamed createNodeWithConnector to createPostsynapticTreenode.

htem/CATMAID,fzadow/CATMAID,htem/CATMAID,fzadow/CATMAID,htem/CATMAID,fzadow/CATMAID,fzadow/CATMAID,htem/CATMAID