Fix bic regex

Author: Joni Saarinen

src/modules/sepa.js

@@ -190,7 +190,7 @@
   $.formUtils.addValidator({
     name: 'bic',
     validatorFunction: function(bic) {
-      var regextest = new RegExp('[A-Z]{6,6}[A-Z2-9][A-NP-Z0-9]([A-Z0-9]{3,3}){0,1}$');
+      var regextest = new RegExp('^[A-Z]{6,6}[A-Z2-9][A-NP-Z0-9]([A-Z0-9]{3,3}){0,1}$');
       return regextest.test(bic);
     },
     errorMessage: '',