Restore countdown after short interruption

[bNobo]

When the user reboot its computer, the application is stopped and restarted after Windows startup. The wait remaining before screen lock is then reinitialized and the user won't be notified in time. For example, there could be only 5 minutes left before locking when the reboot occurs. The user will then stay in front of his screen for too long.

=> Store wait remaining when the PC is rebooted and "Launch at startup" is checked.
=> When the application starts, setup the wait accordingly

The easiest way to do this is to store "startTime" and restore it in InitStartTime method.

[bNobo]

Maybe it's not a good idea: there is no guarantee the user will stay in front of its screen while booting. In this case the countdown restoration could be annoying.

=> It is mandatory to provide an opt-out "resume countdown when it was after reboot" in order to allow user to enable this option only if he actually want it.

[bNobo]

The business rules should be:

• If there was less than five minutes between exit and restart of the application, then restore the time remaining of the countdown
• If there was 5 minutes or more, then restart the countdown from zero (we should then consider the user has taken a break)

[bNobo]

#128