Add label as story-source

Now you can specify a label to print all the given stories
Remove certain stories from the list

– Dont print 'release'-stories
– Dont print 'accepted'-stories

There is a nicer way of doing this for sure, feel free to optimize it
:-)
html-escape story name and description

Otherwise the layout gets broken completelly if you have tags in your
description …
betterplace.org-specific content-changes. And general layout-stuff

Layout improvements.
Content changes, especially the check lists.