round one of migration
migration test/NavigationSchoolAnalyzer.cc
Backport fix for EDAlias and failing edm::Refs
Merged 620slhc2_detid_mig from repository davidlange6
gaelles changes for detid and pyrelval
Merge pull request #1026 from davidlange6/for620slhc2_v1

For620slhc2 v1
Merge pull request #930 from Dr15Jones/backportEDAliasRefFix

Backport Fix for EDAlias and failing edm::Refs