2.4.0

Merge pull request #163 from ono-max/patch-4

Revert "Merge pull request #162 from ono-max/patch-3"

Merge pull request #162 from ono-max/patch-3

ruby: Support `::DEBUGGER__::NaiveString` class

Merge pull request #161 from ono-max/patch-2

add Ruby demo

Merge pull request #159 from ono-max/patch-1

Merge pull request #160 from ono-max/patch-2

Fix typo

ruby support

updates version of @hediet/visualization

v2.3.0

Update changelog for 2.2.4

Update dependencies.