Add possibility to configure way how dots in doc name are evaluated

For some types of documents published on XWiki we would like to use
naming convention where there is a major version included in a name of
the document e.g. 'SomeSpace.Document-0.1'. The problem is that XWiki then resolves it like this 'SomeSpace.Document-0/1' instead of
expected 'SomeSpace/Document-0.1'.
Currently, Web(Space) is substringed from the beginning to the last position of '.' which allows having space names like MySpace.Private.MyDoc but doesn't allow to have dots in name of actual MyDoc document.
It seems there is no way to enable having both variants at once so the only thing we can do is to provide a configuration option which will define what variant you prefer for whole XWiki instance.