Add Date to valueStr() function and vullName property to Parameter Class
Add a few actions to the network tree view.
Couple of small changes to simulation adapter.
General Changes

Updates to README and TODO Files
Spelling fix in devices.py
Add sorting to ModelData Class
Automatic Resize of table header
Started work on context menu
Clean up
More work on the Network Tree Model

Add parameter updates to tree view and fix a few bugs
Add Unit Printing to valueStr() function