Task/iotcore 127 documentation

Changes in the documentation to reflect information about deployment and operation and changes in the Access Control API.
I use this to find the existence of the service:

service --status-all |grep contextBroker

and check for the existence of this:

/etc/sysconfig/contextBroker

So it will only be able to detect it if the CB has been installed using the RPM. In case it has been installed with other methods, the configuration should be performed manually.