Logs: Fully integrated an author_uid column. Logs are now linked by user ID instead of just username, so they survive username changes better. Database is changed. Fixes issue 6.

#!/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