Fix substring of substring bug for istrings, GitLab issue #16.
I believe the change to the initialization of jlStart in the SubString constructor in IString.java fixes GitLab isue #16 (closed).
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
I believe the change to the initialization of jlStart in the SubString constructor in IString.java fixes GitLab isue #16 (closed).