Revert "use "export" for functions"

This reverts commit cca2f54b0588e823057c4cb4b46958f7d6304dfb.
add backup functions
fix variable name
source zenphoto functions
Merge branch 'master' of /var/www/projects/nodezero

Conflicts:
	scripts/functions/menu-functions.sh
	scripts/functions/menus.sh
	scripts/functions/webapps/owncloud.sh
	scripts/functions/webapps/zenphoto.sh
	scripts/nodezero-admin.sh