In r1533839 (related to https://issues.apache.org/jira/browse/OFBIZ-4794 "Set different ports for testing in a CI environment (e.g. Jenkins)"
Which will mostly be used to simultaneously run official demos without having to create patches, I forgot the portOffset for websites and url.properties ports values.
This fixes this point. I also did in it RequestHandler class though the getDefaultServerRootUrl() method is now deprecated.
To be consistent with r1547186 I will backport in R13.07

People should be aware that this will change the ports values of websites and url.properties ports values which in some cases could be an unwanted side effect. 
Anyway the portOffset feature is not destined to be used in production environments where websites and url.properties ports values are often changed purposely

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1549015 13f79535-47bb-0310-9956-ffa450edef68