init commit of openstack-ha playbook
Init commit for HA neutron-l3-agent

- added crm_neutron task to playbook
- udpated neutron-l3-agent.conf upstart file to support pid file
- massive refactoring to neutron-agent-l3 OCF resource
minor fixes

- task include path change
- fixed ansible file module syntax error
fix for crm configure statement
add neutron-dhcp-agent pacemaker support
remove dhcp. finalized l3 agent config
fix default LSB corosync & pacemaker rc.d start/stop order
removing unused ocf resource agents
adding endpoint fqdn to /etc/hosts
reverting back to original (pre-pacemaker) neutron-dhcp upstart config