- Added whitepaper.php for the pdf downloads
 - A single link to the whitepapers in the main menu
 - resorting of the Docs (I think Whitepaper is most important</opinion>)
 - Volunteer -> Contribute
 - Restructured header - Now (Get peercoins with minting/mining/buying)
 - New Site Buying Peercoins @ exchanges (+ disclamer)
 - merged proofofstake with minting ppc
Merge pull request #229 from xeroc/master

 - Added whitepaper.php for the pdf downloads