Add twitter bootstrap and implement modals
Don't store the payment url for docdata webmenu.

The url can't be used after the payment attempt and it can be regenerated based
on the information in the models. Therefore, there's no reason to store it.
Bug fixes for status updates from DocData.

BB-285 #resolve
Sepa app to create xml for bankpayments
Merge pull request #278 from gannetson/sepa

Sepa
Merge pull request #272 from gannetson/bootstrap

Bootstrap
Add configuration to log payment status changes from DocData.

BB-282 #resolve
Don't create a docdata payment order in update_payment_status().
Don't use spaces in merchant_order_reference.
Merge pull request #281 from benkonrath/a-lattice-with-status

A lattice with status