this is partially supported, no? you can lock, but only the session level locks. is it the right way to inform about the behaviour or should we add another jackalope capability for the non-session locks: https://github.com/jackalope/jackalope/issues/67

the rest of this PR i would be ok to merge into 1.1, but this bit seems tricky to me as it can change behaviour if people where using session locks and are checking the capability. the others, nobody can have used because its not implemented at all.