[ Changes by Phil Lobbes <phil at perkpartners.com > ]

[ Changes by Phil Lobbes <phil at perkpartners.com > ]
- CPAN bug #13896 order_number() (which provides access to PNREF)
  is not set when transaction fails [FIXED].
- Remove AutoLoader/Exporter per Jo Rhett <jrhett at netconsonance.com>
- "use" (instead of "require") Business::OnlinePayment
- remove build_subs() and get_fields() (provided by B::OP)
- Fixed bug: VENDOR set to login instead of vendor
  (will still use login if VENDOR is not set)
- minor cleanup remove commented out code, reformat docs a little