Revert "use "export" for functions"

This reverts commit cca2f54b0588e823057c4cb4b46958f7d6304dfb.
update wiki
wiki: Add maintenance.md
Merge branch 'master' of telecom.dmz.se:/var/www/projects/nodezero
ajout ajaxplorer
update wiki
fluidsquares: restore old background images
update wiki
update wiki
add iftop config
packages: replace iptraf with iftop
add iftop to menus, add _NzRunNethogs and _NzRunIftop
update wiki
Merge /var/www/projects/nodezero

Conflicts:
	wiki/Applications.md
add tt-rss-update-feeds cron job, see TODO in that file.
add screenshots to wiki
add default apache2 vhost configs
fix broken vhost name, remove unused ServerName directive
add dokuwiki plugins. TODO: enable them
Merge branch 'master' of telecom.dmz.se:/var/www/projects/nodezero