Now properly handling the agent parameters aparam_rollup_status and aparam_child_agg_status for propagation of updates triggered by a DeviceAggregateStatusEvent from a child. New test test_platform_status_small_network_5 to verify the propagation with a multi-level 5-platform network.
merge upstream/master
adjust comment
add test_platform_status_small_network_5_1: Test of status propagation in a small network of 5 platforms with multiple levels, and 1 instrument,
with all updates triggered from the instrument.
merge upstream/master
Merge pull request #920 from carueda/platform_agent_R2C4

properly handling the agent parameters aparam_rollup_status and aparam_child_agg_status