[issue/3254] Add encrypted ext4 home and sync on logout

Signed-off-by: Egon Araujo <enba14@c3sl.ufpr.br>

server/modules/local-accounts/opt/openslx/scripts/logout.sh

+#!/bin/ash
+
+# runs on logout of users
+
+sync
+echo "syncing"

server/modules/local-accounts/opt/openslx/scripts/systemd-local_accounts

 #!/bin/ash
 
+trap "/opt/openslx/scripts/logout.sh" 0 >>  /etc/profile
 mkdir -p /home/openslx/localaccounts/bak
 for file in passwd group shadow; do
     echo $0": making backup of "$file