Added JDK downloader, updated CLI and Tomcat plugin.

 - remotely install java environment with a single command
 -- bear --create my --template java.basic|nodejs.express| --hosts=vm01,vm02,vm03 --user user --password password --oracleUser us --oraclePassword pa
 -- bear my.setup
 - download jdk with Java FX
Merge remote-tracking branch 'origin/master'