LPS-50227 Modifed ServiceTracker to accept ResourceBundle instead of Object and adjusted other class members to suit this chnage e.g. _serviceTracker variable
LPS-50227 Modified the initLanguageProperties to use ResourceBundle instead of objects

LPS-50227 LanguageResources modified to accomodate ResourceBundle changes and service tracker filter updated to filter out ResourceBundles that are not attached to Portlets
LPS-50227 SF
LPS-50227 simplify
LPS-50227 SF