Donating camel-beanstalk component to Apache Camel

"camel-beanstalk" component was developed and maintained by me (Alexander Azarov) for Osinka https://github.com/osinka . Per @davsclaus consideration https://github.com/osinka/camel-beanstalk/issues/8 , we are donating the code to Apache Camel.
Merge branch 'master' of https://github.com/alaz/camel
Added camel-beanstalk to kit
Polished
Fixed CS
Added beanstalk to features