files for http://r.rschu.me/geoip

This commit includes the crontab and linux shell-script
example for http://r.rschu.me/snippet1
files for http://r.rschu.me/disablecron

This commint includes the crontab and the php constant for the
wp-config.php
filter snippet for http://r.rschu.me/increasefileds
wordpress footnotes plugin for http://r.rschu.me/footnotes
wordpress highlight author comments plugin for http://r.rschu.me/highlight