replace Userid with Authid

in most generic places. this is accompanied by a change in
RpcEnvironment to purposefully break existing call sites.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>

www/config/ACLView.js

@@ -53,7 +53,7 @@ Ext.define('PBS.config.ACLView', {
 		    'delete': 1,
 		    path: rec.data.path,
 		    role: rec.data.roleid,
-		    userid: rec.data.ugid,
+		    auth_id: rec.data.ugid,
 		},
 		callback: function() {
 		    me.reload();

www/window/ACLEdit.js

@@ -40,7 +40,7 @@ Ext.define('PBS.window.ACLEdit', {
 	{
 	    xtype: 'pbsUserSelector',
 	    fieldLabel: gettext('User'),
-	    name: 'userid',
+	    name: 'auth_id',
 	    allowBlank: false,
 	},
 	{