style in an external CSS

It is one more file to fetch, but cleaner. The plan is to use a minimizer later.
Fix feed name on first load

When starting in the articles list page, the title was not updated.
update TODO list for CSS removal
BackoneJS update to 1.0.0 and CDN usage

Update BackboneJS to 1.0.0 and use CDN at the same time (also for underscore)
cleanup TODO in code: task done