Fix error when load environments from command-line. e.g. $ source openrc dirname: invalid option -- 'b' Try 'dirname --help' for more information.
Add some missing dependencies
Add localrc variables to able to change java memory use

Add localrc variables in order to change java memory param
of cassandra and zookeeper.
Fix issue when exec control-node and introduce a new localrc var

control-node has to be executed by root
introduction a localrc var in order to set the ip of the physical
interface, useful when multiple stack/unstack.
start contrail analytics daemons w/ devstack