upgraded bpms version to 6.0.2 for EAP 6.1.1
moving centos to tag centos6

see http://wiki.centos.org/Cloud/Docker the tag 6.4 has been removed,
and replaced by centos6 and centos7
updated bpms version to 6.0.2 for EAP 6.1.1
removed sshd
changed start script

we are now able to start multiple demos using the same fsw image.
Unfortunately the linking feature relies on naming the images. Since we
only need one fsw image, we are still able to run multiple bpms images
without running more fsw images