Merge pull request #9 from mgage/pg2.5.1

Pg2.5.1
backing out of modifications to reduce error messages
Commit revised fix for log warning messages.

It seems likely that the original fix was ok, but there were some debugging warning messages left in that were causing trouble.
Changed redefinition of >< to pull from Vector frather than from Complex
Return isHash definition to original

Check to see if this original definition realy does throw
warning messages to the logs.  If it does we'll need to
modify it to check for the existence of $self.
Adjust def of isHash to prevent warning messages in log