Sortable lookup values, buxfixes and document uploads.
The newly added PDF document feature requires additional libraries to be installed (unless upgrading from GeoKey 1.7.0):
apt-get install libmagickcore-dev libmagickwand-dev imagemagick
You will also need to fix the ImageMagick policy for "write" access:
sed -i 's/\(<policy domain="coder" rights=\)"none" \(pattern="PDF" \/>\)/\1"read|write"\2/g' /etc/ImageMagick-6/policy.xml