WsWorkunits.fetchResults fails.

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #100 from GordonSmith/WsWorkunits_regression

WsWorkunits.fetchResults fails.
Upgrade to latest dagre (which contains graphlib)

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>

Conflicts:
	widgets/src/graph/Graph.js