1.0.0 (2016-04-21)  jrcollins <james.r.collins@aya.yale.edu>
  * Initial release for Bioconductor
1.5.1 (2017-04-11)  jrcollins <james.r.collins@aya.yale.edu>
  * Added trimmed_database
  * Added doLOBscreen check for physically unlikely oxidated molecules
1.18.1 (2021-08-30)  jrcollins <james.r.collins@aya.yale.edu>
  * Updated authors and maintainers
  * Formalized support for new lipid classes including bile salts, wax esters, 
    quinones, etc.
1.19.2 (2021-08-30)  jrcollins <james.r.collins@aya.yale.edu>
  * Eliminated some duplication resulting from relict "trimmed_databases" 
    directory