Added a new command 'auth:clear-reminders' that will clear the expired tokens.

Signed-off-by: Isern Palaus <ipalaus@ipalaus.com>
We should remove the seconds and not add it to the current DateTime.

Signed-off-by: Isern Palaus <ipalaus@ipalaus.es>
Merge pull request #2505 from ipalaus/feature/delete-expired-command

Clear expired reminders from Artisan