Store system overhaul

[Travmang]

So, just bought 'Open Source' and got a chance to check out the new store system, and I must say that it's rather great!

I now have an account that I can log into, and it shows all my past and current purchases and it also provides download links for everything! Much better than having to track down old emails and stuff like that to be able to re download stuff lol. Good work!