Rewrote some security code in PageUtils::savepage to accommodate the ACL system better; there was an issue with non-admin users saving pages on which they have edit rights but wiki mode is turned off

#!/bin/bash
for f in *.svg; do
    echo Converting $f
    fname=`echo $f | cut -d '.' -f 1`
    rm -f $fname.png
    inkscape -z -f $f -w 22 -h 22 -e ./$fname.png
done