ARELLE-331: 404 error on utr.xml, multiple mishandled issues
[IMP]GMO: first attempt to generate filing indicators for EBA.
The generation is working, but the update does not work yet as the list of facts is not correct.
[FIX]: improve EBA validation and avoit Python error for rule 1.6.1
Merge branch 'master' of https://github.com/Arelle/Arelle