fix problem occurrence counter updating algorithm

- closes trac#878

Signed-off-by: Jakub Filak <jfilak@redhat.com>
use last_occurrence with --since

closes #645

Signed-off-by: Jiri Moskovcak <jmoskovc@redhat.com>
Signed-off-by: Richard Marko <rmarko@redhat.com>
console notification shouldn't ask confirmation - closes #652

Signed-off-by: Jiri Moskovcak <jmoskovc@redhat.com>
Signed-off-by: Jakub Filak <jfilak@redhat.com>