more batch of RTE tests
remove dead code comments
prsim: ignore importing attributes on atomic bools (for now)
prsim: node imports atomic attribute into flags
prsim: remove unnecessary node argument to ::evaluate()
Merge branch 'master' into run-time-expressions
re-factor out evaluate inner loop so it can be used by atomic update
prsim: arranging evaluate function to move handling of atomics to caller
perm'd PRSIM_SIMPLE_EVENT_QUEUE (from rewrite branch)
axed 1000 lines of never-want-to-see-this-again code
Merge branch 'master' into run-time-expressions
less mess to read when implementing atomic expressions

Conflicts:
	src/sim/prsim/State-prsim.cc