created missing predadj dependency for 'how adj' questions

I found out that quesitons like "How crazy are you?" were not getting any _predadj dependency so I added one.  Except now, since they were getting a _subj() dependency, the SV-rule is firing twice, once for the _subj() and once for the _predadj() so I should correct that, although the redundancy isn't generating any incorrect relations, just redundancy.