Vogon Latest Code

abstracted list of nodes from diagram , constructed from a diagram template

Changes to add interpretation creator for appellation events and relational events

Adding username or URI as creator while uploading a network to the quadriga

changes to show remove appellation or relation in the view

Code Clean up and Added intermediate Code to get graphical Nodes from Diagram

Removed @override and added a null check to avoid null pointers.

added jersey dependency to hit quadriga and also check the user access rights

Updated to give login information at time of opening a valid remote workspace

Added username and password fields to the launch screen