fix: [docker-host] must delete all cache values in case of upgrade

precise/host/hooks/install.d/70-0k.sh

@@ -231,6 +231,8 @@ else
     git clone "$GIT_0K_BASE"/0k/0k-compose.git
 fi
 [ -e /usr/local/bin/compose ] || ln -sfv /opt/apps/0k-compose/bin/compose /usr/local/bin/
+rm -rf /var/cache/compose
+
 
 cat <<EOF > /etc/default/datastore
 DATASTORE=/srv/datastore