WFLY-3081 : Forward port of BZ-900786

Adding new attributes using socket bindings for redirect port and proxy configuration of web connector.

Jira : https://issues.jboss.org/browse/WFLY-3081
EAP PR : https://github.com/jbossas/jboss-eap/pull/1028
BZ : https://bugzilla.redhat.com/show_bug.cgi?id=900786 (since it is a forward port fr the web legacy subsystem)