v7.0.0

• BREAKING CHANGE drop nodejs 10, minimum version is 12
• BREAKING CHANGE removed callbacks for install and start commands
• BREAKING CHANGE install and start commands are Promises now!
• BREAKING CHANGE docker images are built with jdk11
• BREAKING CHANGE dropped support of old browser drivers and platforms
• BREAKING CHANGE change folder structure #491
• check port before starting selenium #553
  l* ibs update, using github actions instead of travisci, minor fixes