Donation button added

Today I added a donation Button on the left side of the page. The thought behind that is that may be I can finance my server here with this so this hobby pays itself. I like this approach more than adding advertisements even if that seems to be the more common approach.

I hope nobody feels repelled by that button. Its just for those that want to give something to a poor student or have to much money (better give it to me than to a bank: equal value for you, but more value for me). If you decide to pet a cat instead I will be equally happy. 

Also don't forget to make feature requests in the phorum. This is of course independent from donations. I am happy to hear any idea for improvement. Though currently development has slowed down as semester has started again so please be patient.