Merge a fix to release-0.1

diff --cc scripts/cron-pack.sh
index 1594d68e5740316264a4cb21eebed7de6e5efb87,2127e42b119b723be914f001b9d6c141ff1b15ab..906b010ac1c15048a5cda03e48174df938c8f3fd
--- 1/scripts/cron-pack.sh
--- 2/scripts/cron-pack.sh
+++ b/scripts/cron-pack.sh
@@@ -2,13 -2,12 +2,16 @@@
  
  export PATH=$(dirname $0):/bin:/usr/bin:/sbin
  
 +# source the default configuration
  . config.sh
  
- if [ -n "$(find $lastbackupfile -mtime +14)" -o -n "$(cat $statusfile | grep -i incomplete)" ]; then
 +# source the system specific configuration
 +[ -f /etc/lsbackups.conf ] && . /etc/lsbackups.conf
 +
+ days=15
+ minutes=$(($days * 1440 - 60))
+ 
+ if [ -n "$(find $lastbackupfile -mmin +$minutes)" -o -n "$(cat $statusfile | grep -i incomplete)" ]; then
    echo "Running backups from cron..."
    setsid pack-image.sh
    exit 0