GPII-668: Added check to see if the object on which to/from is undefined before attempting to read it
GPII-668: comment referring JIRA to properly fix the ontology service
GPII-668: Improved comment
GPII-668: Added empty NP set (empty.json) to be used for acceptance tests for this fix
GPII-668: Added descriptive text file for the newly added NP set
GPII-668: Fixed typo
GPII-668: Added acceptance test for login with empty NP set
GPII-668: Fixed up comments and descriptions
Merge branch 'GPII-668'

* GPII-668:
  GPII-668: Fixed up comments and descriptions
  GPII-668: Added acceptance test for login with empty NP set
  GPII-668: Fixed typo
  GPII-668: Added descriptive text file for the newly added NP set
  GPII-668: Added empty NP set (empty.json) to be used for acceptance tests for this fix
  GPII-668: Improved comment
  GPII-668: comment referring JIRA to properly fix the ontology service
  GPII-668: Added check to see if the object on which to/from is undefined before attempting to read it
GPII-668: Corrected file permissions of new files