Create a new URL given an optional mode and tree path.
This is used to create URLS when the mode or tree path change as the user
changes mode or the current document in the main area. If fields in
options are omitted, the value in PageConfig will be used.
Create a new URL given an optional mode and tree path.
This is used to create URLS when the mode or tree path change as the user changes mode or the current document in the main area. If fields in options are omitted, the value in PageConfig will be used.