changed constructor and public method signatures to eliminate the need to pass a locale on each method invokation.
removed any code pertaining to explicitly loading and utilizing a translation locale.
removed translation locale variable.
removed translation locale variable from course management controller.
removed translation locale variable from curr. inv. management controller.
removed translation locale variable from authentication controller.
removed translation locale variable from group management controller.
removed translation locale variable from offering management controller.
removed translation locale variable from calendar exporter controller.
removed translation locale variable from learning materials controller.
removed translation locale variable from management console  controller.
removed translation locale variable from program management controller.
removed translation locale variable from instructor group management controller.
removed translation locale variable from calendar controller.
removed translation locale variable from dashboard controller.
removed any remaining usage of the language locale variable from controllers.
removed obsolete method getLangToUse().
removed language key variable from instructor group model.
removed language key variable from group model.
removed language key variable from report model.