Switch Dictionary.byFeatureIndexReverse to be keyed by FeatureId
Move diff_test_mr to setup.sh
Introduced FeatureId.parse
DictionaryConcrete back to dictionary
Introduced DictionaryConcrete byFeatureIndexReverse
Introduced debug-dump-reduction for great good
Merge pull request #407 from ambiata/topic/squash-dump

Introduced debug-dump-reduction for great good