Merged with default
Fixed some bugs I noticed after the merge by making a few elements within GRAPH_HANDLER global.
Removed a bug when jumping to the final model (some nodes could be selected, but not all).
Cleaned up code for a much simpler solution.
Closing branch.
Merged in Issue160
Merged in Issue192
Added set of selected nodes to ModelTab
Added skeleton methods for acquiring paths.  Added button with skeleton handler for getting selected paths.
Started to flesh out method for getting paths through nodes.  Still need to do graph traversal.
Merged Issue195 into default.
Added the remaining info for traversing the graph to get the selected paths.  Untested so far
Fixed a small error.  Added debugging code for running a few tests.
Cleaned up comments and some code.  Reverted Jung files to how they were originally.
Added method to export paths through selected nodes in PartitionGraph.java
Changed the GUI and GWT methods regarding exporting paths through selected nodes to use the method in partition graph
Small bug fix (checking for null values).
Merged with default.
Added unit test for null parameters.
Added unit test to check paths through selected nodes.  Currently only checks an outstanding bug.