added missing dependencies amqp and eventlet,removed setuptools for source code in contrail.sh .Replaced CFGM_IP with OPENSTACK_IP in contrail_config_functions
Upgraded setuptools in python_dependencies,replaced CFGM_IP with  OPENSTACK_IP in contrail_config_functions
Merge pull request #12 from ravitejagettam/test-m1-build

added missing dependencies in source code contrail installation,replaced CFGM_IP with OPENSTACK_IP in contrail_config_functions.