record latest release date fround in membership
remove CADC defaults for jcmt_db, omp_db
adfile_container matches AD URIs at the start of each line, ignoring any leading space characters including vertical bar (|)
improve the caom2ingest doc strings
update version to 1.2.4
Merge branch 'master' of github.com:jac-h/python-tools4caom2

corrections to errors discovered during code review