Description of problem: Whilst building a route in the graphical Fuse route builder, the addition of a route that references an entry in a .properties file for the endpoint breaks the editor to the point it won't render the route at all.  However, the route can still be executed successfully and the message sent to the defined endpoint.


Version-Release number of selected component (if applicable):
JBoss Fuse Tooling Apache Camel Editor
8.0.0.Beta2-v20160401-1305-B821


How reproducible:
Add a 'to' route where the uri is solely a property, i.e. {{remote.endpoint}}
Where the properties file entry looks something like this:
remote.endpoint=http://remote.endpoint.address/Service.svc

Steps to Reproduce:
1. Create a new camel route
2. Add a 'to' route where the uri is solely a property, i.e. {{remote.endpoint}} (can be in the visual editor or added directly into the route manually like this: <to id="_to1" uri="{{remote.endpoint}}"/>)
3. Open the camel route in the visual editor

Actual results:
Visual route editor no longer renders the route, but instead displays only a Red dot with a white X inside.  A stack trace is also displayed when 'Details>>' is clicked.  Top of stack trace in additional info section below.


Expected results:
The visual route is rendered correctly

Additional info:
Top few lines of stack trace:

java.lang.IllegalStateException: The ContainerShape must have a valid GraphicsAlgorithm: org.eclipse.graphiti.mm.pictograms.impl.ContainerShapeImpl@5b59a244 (visible: true, active: true)
	at org.eclipse.graphiti.ui.internal.parts.ContainerShapeEditPart.createFigure(ContainerShapeEditPart.java:100)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.getFigure(AbstractGraphicalEditPart.java:494)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.addChildVisual(AbstractGraphicalEditPart.java:208)
	at org.eclipse.graphiti.ui.internal.parts.ContainerShapeEditPart.addChildVisual(ContainerShapeEditPart.java:170)
	at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:211)
	at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:781)
	at org.eclipse.graphiti.ui.internal.parts.ShapeEditPart.refreshChildren(ShapeEditPart.java:682)