FIX: Key algorithm length should be optional. (fixes #59)

[ximon18]

OpenDNSSEC enforces RelaxNG XML schema rules for some config files and not others, specifically ods2cascade enforced the RelaxNG schema rules for KASP XML files while ODS does not. Default algorithm length to zero as ODS does.

[bortzmeyer]

IMHO, to fix #59 , it should also include better error messages (name of the file and line number).

[ximon18]

IMHO, to fix #59 , it should also include better error messages (name of the file and line number).

As that is a more general error (and arguably an enhancement rather than an error) not limited to the length field I intend to raise a separate issue for that and handle that separately. That may also take more time to fix than I have available now.

[ximon18]

IMHO, to fix #59 , it should also include better error messages (name of the file and line number).

As that is a more general error not limited to the length field I intend to raise a separate issue for that and handle that separately. That may also take more time to fix than I have available now.

I have created #64 to track the extra work needed.