admin - enhancement to login

Added a 'back to login' option on the 'create account' panel.
admin orders - order edit update

Moved the billing address so shipping would be on the left. This is more
in sync with old order interface and ZID.
admin orders - enhancement to order edit

The order editor now uses anypanel instead of accordion to allow for
multiple panels (order history and shipping, for instance) to be open at
the same time.
admin - showHelpInDialog

New function for showing a webdoc in the dialog.
admin orders - order notes weren't allowing more than 1 note.