Change wakame/master.rb to remove master_local_agent concept and etc.
Change wakame/master.rb to remove master_local_agent concept and etc.

* Remove master_local_agent references which was used for new VM template.
* Master stops to check the running VM attributes on itself at start time. This makes the master process runnable out of EC2.
* Add resolve_template_vm_attr() for setting VM template values to ServiceCluster.
* Bug fixes for AgentMonitor and ClusterManager.

axsh/wakame-fuel,axsh/wakame-fuel,axsh/wakame-fuel