v2.4.0

• Ruby and Rails matrix in CI #398 (@RobinDaugherty)
• Fix variable inspection specs #403 (@RobinDaugherty)
• Fix browser performance issues with configurable maximum variable size #402 (@bquorning, @tobypinder)
• Fix sharing the DOM with web-console #401 (@RobinDaugherty)
• Test coverage reporting in CI #404 (@RobinDaugherty)
• Make hitting tab key focus on the console #338 (@chesterlaw)
• Use Rails BacktraceCleaner to log errors if it's defined #343 (@pzgz)
• IDEA and Rubymine editor url capability #319 (@mattschlobohm)

To complete this release:

• Update wiki to reflect new editor support