Only include 5, not 6, project news items on the front page. This is
mainly a band-aid to make the project news box not be way too large.

The current problem is that the XSLT code counts 5 days, not 5 news
items so when we, like we do now, have a few days with multiple
entries the news box gets way to big. I could not find a quick way to
change this, hence the band-aid.