Merge pull request #8 from bubbas/master

New plugin: dkb_cc for the Deutsche Kreditbank AG (DKB) statements
zc.recipe.egg = 2.0.0a2 version pinned

Otherwise, z3c.recipe.scripts does not work with newest 2.0.0a3
More indentation fixed
Add a not about python 3
Releasing ofxstatement-0.4.0
added plugin (lbbamazon) for statements of the Amazon creditcard of the LandesBank Berlin