Fix for gen-looping lower boundary
(avoid activating SUR when GEN is about to hit lower threshold)
failing test for correct gate_param behaviour
turns out, reload_native_modules is not really understood yet.

What happens if nodetypes vanish? what happens to their nodes? This adds a rudimentary currently failing test that will need to be refined, once we're clear about the intended behaviour
extensive test for nodenet data structure
Merge branch 'refs/heads/test_return_values_and_types' into redundancy_hunt
Not checking for indices for now
Fixes for some broken fields
Cleanup
Init and merge cleanup