Split the node management event bus up from the trace controller
remove support for disabling tracing (since we now fire events anyway)
TraceEvent => MxEvent
Relocate trace infrastructure beneath C.D.Process.Management
Build up an initial execution environment for agents
dev-install mode can run against local copies of other repos
Management Agent API Improvements
Back out of the split between tracer and local mx event bus
Refactor and introduce management API test suite

Tracers no longer receive trace events pertaining to themselves.
Introduce module to hold common test utility code.
Improve the management data/properties API
Merge branch 'mx' into development