LPS-44908 Move thread priorities and user ranks preferences to portal.properties
LPS-44908 Adapt MBSettings to new BaseServiceSettings defining the fallback keys chains so that default values are read from portal.properties instead of being hardcoded in the Java class
LPS-44908 Make configuration.jsp use MBSettings.getPriorities()
LPS-44908 Add new default values to portal.properties
LPS-44908 Order properties alphabetically
LPS-44908 Change separator of thread priorities from comma to pipe to bypass a problem with the parsing of properties files when multi valued properties are defined
LPS-43576 Return null if the portlet doesn't exist (because the portletId may be a serviceName). This restores commit a45e461fc12c01d6b2fcfb1a2728ea36f38696db back again, which was removed by ae6b020809f94c34897e964205b276f963f29614 (related to LPS-45131)
LPS-44908 Rename
LPS-44908 Sort by keys
LPS-44908 SF