Update manifest to solve "lack of entropy"problem 

https://groups.google.com/a/cloudfoundry.org/d/msg/vcap-dev/GogAsIvBeVo/LqFPEDOcXysJ
https://groups.google.com/a/cloudfoundry.org/d/msg/vcap-dev/liTZDW9hgm4/d3GeC5AL_OAJ

Work around is to use the less secure /dev/urandom and to add
'-Djava.security.egd=file:/dev/urandom' to the start up command.