Developing Hooks / stubs mechanisms for Mozilla Lightning and Improve event/tasks alarms support

by Anirvana for Mozilla

#1 - Hooks / stubs mechanisms for Mozilla Lightning The goal behind this project is to add extension points to Lightning to facilitate extension developers that would like to provide tight integration between Lightning and their groupware of choice. #2- Improve event/tasks alarms support The goal behind this is to make sure that reminders perform well in case of past alarm,recurring events/tasks and shared alarms.