selenese-runner-java-3.14.0

• Add new option --alert-policy which change the behaviour in case of Unexpected alerts. (PR #270 by @apcros with refactoring by @vmi)
• Ignore non text nodes from selenese html. (PR #271 by @janblok)
  • Accept CDATA nodes. (by @vmi)
• Catch up Selenium 3.11.0.
• Update dependency versions.