Add first attempt at filtering feed posts
Remove internal urls from feed till issue is fixed

Relative urls in the feed did not work, temporary fix
is to remove the href contents till they are properly
fixed.
Firtzbox post
Extract images post
Clean up projects directory post
Matchmonitor release 1 post
Remove link targets from feed

Still need to make them absolute for the feed links to work,
but have not taken the time to fix that.