this is a quite massive change to the comic applet, yeah i know quite hard to review sorry for that.

the main changes are:
- i've added a provider to <a href="http://www.osnews.com/comic">http://www.osnews.com/comic</a>; (got permission from them) it uses a rss feed so only last 15 will be available but i think is enough
- now the applet can be resized (option that can be disabled if you want to see the comic as is)
- the dataengine now gives more data that can also be cached at the moment it has only the url of the comic of the day, but i plan to use it also to pass the date of the previous and the next comic (useful for comics that don't have a strip every day)
- the url of the comic is displayed at the bottom of the applet and clicking on it it opens a web browser on that page (useful if the comic is scaled down and some (osnews) explicitly asks it)