Changes to make graph tabs look like tabs

Not completed yet, saving changes to pull from master
Resolving git problems
Removed border changes

very small change
Merge branch 'master' into dillanbutler
Added Delete Node button to node editor
Merge branch 'master' into avaneesh

Conflicts:
	www/js/draw-model.js
reverted draw-model.js to master version
Random seed, conditional and nan feedback
Bug# 2428
No description, make name description
Fixes for bug fix for 2428. Still has a small bug.
Merge branch 'avaneesh' -- adding delete node button.
Fixed border issues with auto description
Final description changes
Merge branch 'master' into dillanbutler
Fixed bug 2559
Merge branch 'dillanbutler' - autofill description, bug 2559
Changed description to problem statement in  a couple more places.
Merge branch 'master' into sachin