fixed a bug which meant an undefined qrcode would show up when on the verification page

index.html

@@ -438,7 +438,7 @@
 							<div class="row">
 								<div class="col-lg-6">
 									<div class="input-group">
-										<input type="text" class="form-control multisigAddress" value="" readonly>
+										<input type="text" class="form-control address multisigAddress" value="" readonly>
 										<span class="input-group-btn">
 											<button class="qrcodeBtn btn btn-default" type="button" data-toggle="modal" data-target="#modalQrcode"><span class="glyphicon glyphicon-qrcode"></span></button>
 										</span>