Correct javadoc
Correct time unit converting
Rename BackupManager.getBackup() to .getBackupFile()
Correct javadoc for BackupManager's methods
Add some IAE throws in the BackupManager class
Add constructors for both a message and a cause
Pass the message to the new FatalReportedException
Make ReportedEx and FatalReportedEx constructors private
Fix ReportedException rethrowing
Fix and improve AccountManager API, correct plenty of javadoc comments
Make more use of exception constructors
Add missing serialVersionUIDs