Add new MySchedule manager class for web layer management

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Since Vaadin no longer need us to process request/response servlet models, we 
need a new manager class that acts as central lookup point for the MySchedule 
inside the web module.

This is good chance to rework the data model representing the scheduler configs 
and the high lever application (MySchedule) config classes. Propose to use 
MyScheduleSettings and SchedulerSettings.

Refactor FileStore and create SchedulerSettingsStore and TemplateStore to 
manage data files for this app.

Original issue reported on code.google.com by saltnlight5 on 12 Mar 2013 at 2:29

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Original comment by saltnlight5 on 12 Mar 2013 at 2:30

• Changed title: Add new MySchedule manager class for web layer management

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Original comment by saltnlight5 on 12 Mar 2013 at 2:45

• Changed state: Fixed