Let users disable graph interaction
Allowing disable user input on entire graph
Just a small demo of adding graph inside graph

By no means this is a guide how to do it. I'm just playing with SVG
composition
merging upstream
Removed mixed quotes setting
Naive positions precompute
Added description
Added example with advanced precompute/zoomout
Removed unused function, updated title
Fixed wrong stable threshold
merge with upstream master
merged with upstream master