Fixed default value of parameters for URL-input visibility

res/values/branding.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string name="server_url">"http://beta.owncloud.com/owncloud"</string>
-    <bool name="show_server_url_input">false</bool>
+    <string name="server_url"></string>
+    <bool name="show_server_url_input">true</bool>
 </resources>