Merge from rhiju/dms_score bracnh: includes new score term for RNA chemical mapping (for now, just dimethyl sulfate reactivities). In integration tests, cosmetic changes due to one additional residue type, and change in score type names (in jd2_database tests). I am also seeing changes to match_1n9l & cstfile_to_theozyme, which look like late floating point deviations on my Mac, but I will monitor output from test server.