slaprunner: import script: exclude pid, sock and .installed.cfg files from rsync.

Obvious effect: don't consider processes like mysql as running if it comes from another partition (case of erp5testnode).
Less obvious effect: don't sync/delete supervisord.sock.
Less obvious effect: in erp5testnode, don't uninstall things from main instace when running buildout of instance of clone runner instance.

software/slaprunner/common.cfg

@@ -52,7 +52,7 @@ mode = 0644
 recipe = hexagonit.recipe.download
 url = ${:_profile_base_location_}/template/runner-import.sh.jinja2
 download-only = true
-md5sum = 2856977fe6d7d5886c4fb97f445709f7
+md5sum = 40c1e8e5460661e61bf209c3192d4ddf
 filename = runner-import.sh.jinja2
 mode = 0644
 

software/slaprunner/template/runner-import.sh.jinja2

@@ -13,7 +13,7 @@ restore_element () {
   do
     cd $backup_path;
     if [ -f $element ] || [ -d $element ]; then
-       {{ rsync_binary }} -av --delete $backup_path/$element $restore_path;
+       {{ rsync_binary }} -av --delete --exclude *.sock --exclude *.pid --exclude .installed.cfg --exclude .installed-switch-softwaretype.cfg $backup_path/$element $restore_path;
     fi
   done
 }