default WARN level for oms_simulator; env var oms_simulator.loglevel can used
 to change it
preliminary preparations for port agent coordination
merge upstream/master
disable port agent helper for the moment
include the recently enabled 5 instrument simulator instances (for a total of
 7) on sbe37-simulator.oceanobservatories.org.  The 7 instruments are created
  successfully in test_platform_hierarchy_with_some_instruments  but only 2
  assigned to platforms as there are some strange issues.
merge upstream/master
remove port agent related calls in platform agent: no such coordination is
needed (at least for the time being) per discussion with Edward and Maurice.
 (I'm still keeping the supporting modules port_agent_helper and
 port_agent_packet.)
merge upstream/master
merge upstream/master
some alignment re get_resource_capabilities and get_resource
manually merged adjustments indicated by Ian.
some more alignment with set_resource
some clean-up (ping_resource)
aligning with EXECUTE_RESOURCE
more alignment: add GET_RESOURCE_STATE and test_resource_states
update this branch by bringing updates in other working branch
merge upstream/master
adjustments in FSM construction (and explocit set of initial state) upon
changes merged by Edward.  All platform UNIT and INT tests passing ok.
adjustments in FSM construction (and explocit set of initial state) upon
           changes merged by Edward.  All platform UNIT and INT tests passing ok
Merge pull request #847 from carueda/platform_agent_R2C4

Several changes and additions to platform agent framework for R2C4