Use quotefmtinstall(); and %q when printing values in
ndb/query and ndb/ipquery.

Added quote parsing in libndb allowing strings quoted with " or ' and
embedded "" or '' inserts a single " or ' in the usual style; double quotes
don't feel like the plan9 way, but I kept support for backward compatability.

This useful for txt='' and hinfo='' strings.

-Steve