(fix) sets right status codes in withdraw btc utility function + adds /withdraw to routing middleware
(test) adds testing for backend withdrawing functionality
Merge pull request #123 from kayellpeee/test/withdraw_backend

Test/withdraw backend
(cleanup) removes commented code from app/routes.js
(graphic) edits the logos
(graphic) hacks the logo into approx position with incorrect CSS
(fix) fixes ng-submit call in signup form