[WFLY-2451] Providing a new WSServerConfigAttributeHandler to deal with WS server config basic member updates, as well as implementing a mechanism for allowing changes to the server config when there's no active WS deployment
[WFLY-2451] Adding integration testcase
[WFLY-2451] Adding unit test + some formatting / indentation fixes
[JBWS-3737] Build PolicyAttachmentStore when the first @PolicySets annotation is found
Make sure the test leaves the server configuration the same it was before running
Fix error in documentation