Dokuwiki upgrade script

upgrade.sh

export VERSION=stable
wget http://download.dokuwiki.org/src/dokuwiki/dokuwiki-$VERSION.tgz
tar -xf dokuwiki-$VERSION.tgz --strip-components=1
rm dokuwiki-$VERSION.tgz

# Remove unused files
grep -Ev '^($|#)' data/deleted.files | xargs -n 1 rm -vf

# fix permissions
chown -R wiki:wiki data
chown -R wiki:wiki lib/plugins/

# Reset upgrade message 
rm  /usr/local/var/dokuwiki/orga.cccv.de/cache/messages.txt

# Copy icons from
cp -a backup/* .