added plugin for statements for the VISA creditcard of the DKB (Deutsche Kreditbank AG, Germany)
Added sample csv File for the dkb_cc plugin
Added test case for the dkb_cc plugin
changed to 4 space identation in dkb_cc plugin
Merge pull request #8 from bubbas/master

New plugin: dkb_cc for the Deutsche Kreditbank AG (DKB) statements