Update sponsors for 2013

(cherry picked from commit 3428b0c258f40239d549302d56ceb77ae591991d)
2013 title slide and background updates
(cherry picked from commit f57631608dffe09d9238c0e91ccefa8861247ea0)
Update routes slides for Web API

(cherry picked from commit ccebfd394729806598e6c061a9d5dc1ad877c099)
Update Controller example for Web API

(cherry picked from commit 12091e2c62be7dd6c6679291a16e85be1cd33a0c)
Authentication & authorization

(cherry picked from commit 11acde57b1821068fc5517709f1a9999c33276ad)
Update usage examples
(cherry picked from commit 1c6847573c3ea15e1aa6096617b3ca2dc8d4f6f4)