Fixes in ARDHandler.js and inital work on icon
There were some mistakes in ARDHandler.js which prevented the addon from
fetching the filesize of the videos and therefore no downloads from
ARD-Mediathek were possible. This mistakes have been fixed - downloading
form ARD is now working fine.
Furthermore there is a draft on an icon (to be correct there are too
drafts at the moment... - a decision has to be made).
Release should be possible soon.