commiting for merge
Merge remote-tracking branch 'simon/master'
working on the control flow
working on getting info for first tab, bug in the control flow
control flow upto render basic information for basic information complete but unedited
1 change to line 270 from last commit
first control flow debugged
buggy, working to integrate the notebook and control flow in simple_ui
debugged but not yet displaying updates on notebook
first tab working
* Add the tab changed handler