updating BB tutorials
Added controlled oscillator to demos
Fixed the odd binding template and a mistake in a tutorial
update tutorials BaB
Fixed close icon overlap when unfocused
Made changes to layouts in the main UI.

Previously, there were some UI elements in the toolbar ath the top.
I moved it so that layout changing elements (zoom-to-fit,
apply feed-forward, save current layout, and restore last saved
layout) appear at the bottom right of each network viewer.
These buttons are hidden until moused over.
Merge in 1.4 fixes