Bug#766757: Generated services should start After=systemd-user-sessions.service

[Alexandre Detiste]

control: tags -1 + fixed-upstream

Ok, I've added After=systemd-user-sessions.service 
& RequiresMountsFor=/home/folder 
for user crontabs + /var/spool/cron/crontabs/root .

https://github.com/systemd-cron/systemd-cron/commit/98ae11e0341f5c955c9de08778de9de3bafd459b