fix negation display in the logic to match the human readable from the MAT
removed whitespace
Merge pull request #329 from projecttacoma/fix_negation_logic_display

Fix negation logic display
fix comparison of descriptions to ignore commas... SO vs non SO do not have commas identical on diagnostic studies
Merge pull request #328 from projecttacoma/fix_multiple_diagnostic_study_results

fix comparison of descriptions to ignore commas... SO vs non SO do not h...
branch HDS since we cannot support latest active support with turn
added error message that resulted from loading the XML