debugs errors with libdvid parsing and dvid number serialization/deserialization; graph build mostly working with features -- more debugging still desired; graph build will not work for ROI larger than datatype size; graph prob still must be checked
Merge branch 'master' of https://github.com/janelia-flyem/NeuroProof
fix regression mismatches; simple print fixes for test 1 and test 2; DEFAULT classifier behavior changed for test 5 -- slight improvement but similar enough that it is most likely correct