Correct a bug: when angle-limited, the steering could never be accelerative.
A tiny bit better at predictive interception.
Better setups for pursuit & evasion that slow things down and better illustrate matters.
Be sure to scale the side vector by current speed to achieve proper 'strength'
Higher mass for the separation example to slow things down.
Return immediately for zero steering; comment.
Highlight the most dangerous threat with a danger-radius circle.
Tighten up the demo lookahead (helps the 'worst threat' alg do its job)
Gemspec, changelog.